CN102820970B - Electronic installation and the authentication method of battery module thereof - Google Patents
Electronic installation and the authentication method of battery module thereof Download PDFInfo
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- CN102820970B CN102820970B CN201110152638.3A CN201110152638A CN102820970B CN 102820970 B CN102820970 B CN 102820970B CN 201110152638 A CN201110152638 A CN 201110152638A CN 102820970 B CN102820970 B CN 102820970B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Electronic installation and the authentication method of battery module thereof, this electronic installation includes battery module and battery authentication module.Battery module has authentication circuit and identifies resistance.When battery module, this is connected to battery authentication module, battery authentication module foundation reference resistance couples voltage level a little to obtain the type information of battery module with identification resistance.Battery authentication module also transmits certification demand to authentication circuit, makes authentication circuit pass through reference resistance and authentication information is transmitted to battery authentication module in the path that couples identifying resistance.Wherein, it build in reference resistance in battery authentication module.
Description
Technical field
The present invention relates to certification device and the authentication method thereof of the battery module of a kind of electronic installation.
Background technology
Refer to Fig. 1, Fig. 1 and illustrate the schematic diagram of known electronic installation 100.In this known art, it is used for being connected in the electronic installation 100 battery 110 with offer electric power be provided with a pull down resistor RPL.Pull down resistor RPL is serially connected between the connection end CN1 of battery 110 and ground voltage GND.Electronic installation 100 is used for carry out the battery authentication module 120 of battery authentication then includes pull-up resistor RPU, transistor M1, resistance RSD1 and processor 121 and 122.Pull-up resistor RPU is connected to voltage V1 and the grid of transistor M1, and the drain electrode of transistor M1 is then coupled to voltage V2 and processor 121, and the source electrode of transistor M1 is then coupled to ground voltage GND.Resistance RSD1 is then serially connected between end points DT and processor 122.It addition, battery authentication module 120 is additionally coupled to connect end CN2.
When battery 110 is connected through holding the connection end CN2 that is connected with battery authentication module 120 of CN1 to be connected with each other, the voltage on end points DT can carry out magnitude of voltage produced by dividing potential drop equal to the resistance value of voltage V1 foundation pull-up resistor RPU and pull down resistor RPL.Now processor 122 then reads the voltage on end points DT, to distinguish the label of battery 110.It addition, when battery 110 is operatively connected to battery authentication module 120, the voltage on end points DT can reduce and make transistor M1 to close.Therefore, processor 121 receives the magnitude of voltage equal to voltage V2, and judges that battery 110 has been connected on electronic installation 100 accordingly.
Due under this known battery discriminating method, the battery of non-original factory only needs to configure wherein the resistance of one and the pull down resistor RPL similar resistance in genuine battery, so that it may so that battery authentication module 120 cannot recognize whether the battery into genuine.Consequently, it is possible to when the action that the battery of this kind of non-original factory is charged by electronic installation 100, it is possible to misgivings for security are produced because voltage overcharges.
Summary of the invention
The present invention provides a kind of electronic installation, is authenticated with the battery module being connected it, with the infringement avoiding the battery module of non-authentication to be likely to result in electronic installation.
The present invention provides the authentication method of the battery module of a kind of electronic installation, with the infringement avoiding the battery module of non-authentication to be likely to result in electronic installation..
The present invention proposes a kind of electronic installation, including battery module and battery authentication module.Battery module has authentication circuit and identifies resistance, wherein, identifies that resistance is coupled to the first reference voltage.Battery authentication module has reference resistance and is coupled to the second reference voltage.When battery module, this is connected to battery authentication module, reference resistance and identification resistance are serially connected with between first and second reference voltage.Battery authentication module foundation reference resistance couples voltage level a little to obtain the type information of battery module with identification resistance.Battery authentication module also transmits certification demand to authentication circuit, makes authentication circuit pass through reference resistance and authentication information is transmitted to battery authentication module in the path that couples identifying resistance.
The present invention separately proposes the authentication method of the battery module of a kind of electronic installation with battery authentication module, including: first read the voltage level of battery authentication module and the connection end point of battery module, and obtain the type information of battery module according to voltage level.Again by battery authentication module transmission certification demand to authentication circuit, and authentication circuit is made to transmit authentication information to battery authentication module by the end points that battery authentication module is connected with battery module according to certification demand.
Based on above-mentioned, the present invention, according to the voltage level on the connection end point of battery authentication module and battery module, knows the type information of the battery module being connected to electronic installation.Further, the present invention more utilizes built-in battery authentication module in an electronic, receives the authentication information transmitted by the authentication circuit in battery authentication module.Enter more effectively to determine at least one of type information of the specification of the battery module being connected to electronic installation, model and label, can effectively prevent the infringement of the system that electronic installation causes because using the battery module of non-authentication.
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 illustrates the schematic diagram of known electronic installation 100.
Fig. 2 illustrates the schematic diagram of the electronic installation 200 of one embodiment of the invention.
Fig. 3 illustrates the schematic diagram of an embodiment of the battery authentication module 220 of the embodiment of the present invention.
Fig. 4 A and Fig. 4 B illustrates the oscillogram that the information between battery authentication module and battery module transmits respectively.
Fig. 5 illustrates another embodiment of the battery authentication module 220 of the embodiment of the present invention.
Fig. 6 illustrates the authentication method of the battery module of the electronic installation of one embodiment of the invention.
[main element symbol description]
200: electronic installation
210: battery module
220: battery authentication module
211: authentication circuit
221: Main Processor Unit
222,223,224: auxiliary processing module
DT: end points
RBAT_ID, RBAT: divider resistance
RUP: reference resistance
RPL: identify resistance
GND, V1: reference voltage
CN1, CN2: connection end point
PT1: path
RESD: resistance
VUP: upper pull-up voltage
T0, T1, T3, TL, TH: time interval
The authenticating step of S610～S630: battery module
Detailed description of the invention
Refer to the schematic diagram that Fig. 2, Fig. 2 illustrate the electronic installation 200 of one embodiment of the invention.Electronic installation 200 includes battery module 210 and battery authentication module 220.Battery module 210 has authentication circuit 211 and identifies resistance RPL, wherein, identifies that one end of resistance RPL is coupled to reference voltage GND, identifies that the other end of resistance RPL is then coupled to authentication circuit 211.Battery authentication module 220 then has reference resistance RUP and is coupled to reference voltage V1.Wherein, battery module 210 and battery authentication module 220 respectively have connection end point CN1 and CN2.
When battery module 210 is connected to battery authentication module 220, reference resistance RUP and identification resistance RPL is serially connected with between reference voltage V1 and GND.It is to say, reference resistance RUP and the voltage identified on the end points DT that resistance RPL couples, the result of the dividing potential drop that can be carried out with the resistance value identifying resistance RPL according to reference resistance RUP equal to reference voltage V1.
In the present embodiment, battery authentication module 220 obtains the type information of battery module 210 according to the voltage level on end points DT.Here, so-called type information includes at least one of information such as battery module 210 label, model and specification.Specifically a little illustrate, owing to having the battery module 210 of different types of information, the size of its built-in identification resistance RPL differs, therefore, when being connected to battery authentication module 220 when the battery module 210 of different types of information, the voltage level on end points DT also can be different.Therefore, battery authentication module 220 can be obtained the type information of battery module 210 by the voltage level on end points DT.
Additionally, particularly note that is, battery authentication module 220 know with battery module 210 produce be connected after, battery authentication module 220 can transmit certification demand to the authentication circuit 211 in battery module 210, and thereby makes authentication circuit 211 can transmit authentication information to battery authentication module 220 by reference resistance RUP with path P T1 that couples identifying resistance RPL.Subsidiary one is mentioned that, it is also, by same path P T1, by battery authentication module 220, certification demand is sent to authentication circuit 211 that aforesaid battery authentication module 220 can transmit certification demand to the authentication circuit 211 in battery module 210.
Here, authentication circuit 211 can be a kind of authentication information circuit to connection end point CN1 that can transmit numeral or analog format.It is to say, authentication circuit 211 can be that resistance string, the integrated circuit of executable code or the capacitance network utilizing concatenation is to produce authentication information.Wherein, when authentication circuit 211 can be to be serially connected in resistance string between the voltage utilizing two varying levels, and utilize branch pressure voltage produced by resistance string, raw authentication information is provided.Or, authentication circuit 211 can utilize the integrated circuit of executable code, provides the authentication information that encoded numerical data is used as.Also or, authentication circuit 211 can also produce authentication information by the way of capacitance network is to carry out dividing potential drop or multiplication of voltage to voltage.
Connection end point CN2 and CN1 being had due to battery authentication module 220 and battery module 210 is all the connection end point of single bar wire, therefore, the information transmission between battery authentication module 220 and battery module 210 can be carried out by a kind of so-called single line connection protocol (one-wireprotocol).
So-called single line connection protocol, refers to the data transmission utilizing single bar wire to carry out between two electronic installations.In simple terms, under the framework of single line connection protocol, the wire being used for carrying out data transmission can be maintained at the state being driven high (pullhigh).When one of which electronic installation (such as device A) to transfer data to another electronic installation (such as device B), device A can be by dragging down the transmission with informing device B data to be carried out of the voltage level a period of time on (pulllow) wire.After device B confirms to know data transmission action to be carried out for device A, device A can transmit the data of difference (logical zero or logic 1) by dragging down the different time of the voltage level on wire.
Hereinafter refer to the schematic diagram of an embodiment that Fig. 3, Fig. 3 illustrate the battery authentication module 220 of the embodiment of the present invention.Battery authentication module 220, in addition to including reference resistance RUP, still includes Main Processor Unit 221, auxiliary processing module 222 and divider resistance RBAT_ID.Main Processor Unit 221 is coupled to reference resistance RUP and does not couples the end points DT of reference voltage V1.Auxiliary processing module 222 is then coupled to Main Processor Unit 221, and divider resistance RBAT_ID be coupled in auxiliary processing module 222 and Main Processor Unit 221 couple between path, wherein, the resistance value of the divider resistance RBAT_ID resistance value less than reference resistance RUP.Further, Main Processor Unit 221 can utilize a foot position of its universal input and output (GeneralPurposeInputOutput, GPIO) port to be coupled to end points DT.And the universal input and output being connected with end points DT by this) a foot position of port carries out the biography of data and receive.
Below in conjunction with Fig. 2 and Fig. 3, carry out the acts of authentication of the battery module 210 of the electronic installation 200 of the specific description embodiment of the present invention.First, when battery module 210 is connected to electronic installation 200, auxiliary processing module 222, according to the magnitude of voltage read on end points DT, obtains the type information of battery module 210.At this, auxiliary processing module 222 can be an analog-digital converter, so that the voltage on the end points DT of analog format to be converted into number format, and provide the voltage on the end points DT that battery module 210 utilizes number format to obtain the type information of battery module 210.
Then, auxiliary processing module 222 provides upper pull-up voltage VUP to one end (other end of divider resistance RBAT_ID is coupled to end points DT) of divider resistance RBAT_ID, and, after upper pull-up voltage VUP provided in auxiliary processing module 222 is stable, Main Processor Unit 221 transmits low level voltage to end points DT, so that the voltage level on end points DT is by the voltage level equal to upper pull-up voltage VUP, it is pulled to relatively low voltage level (such as equal to ground voltage).At the same time, the authentication circuit 221 of battery module 210 then can detect the state that the voltage on end points DT is pulled low, and uses the certification demand knowing that battery authentication module 220 is proposed.
It is noted that in the present embodiment, the resistance value of reference resistance RUP is much larger than the resistance value of divider resistance RBAT_ID.When one end of upper pull-up voltage VUP that auxiliary processing module 222 provides to divider resistance RBAT_ID, the magnitude of voltage on end points DT is almost determined by the magnitude of voltage size of upper pull-up voltage VUP.It is to say, the magnitude of voltage on end points DT now approximates the voltage of pull-up voltage VUP.On the other hand, when, after the voltage stabilization on end points DT, Main Processor Unit 221 is by transmission low level voltage to end points DT, to draw the voltage on fall end points DT for equal to low level voltage.
It addition, be the protection carrying out static discharge, series resistor RESD between Main Processor Unit 221 and end points DT.
The authentication circuit 221 of battery module 210 is after knowing the certification demand that battery authentication module 220 is proposed, it is input endpoint that Main Processor Unit 221 then changes its end points coupling reference resistance RUP, authentication circuit 221 then can provide end points DT low level voltage, and utilization drags down the voltage level on end points DT and transmits authentication information with carrying out sequence.Wherein, Main Processor Unit 221 can utilize a foot position of its universal input/output port to couple end points DT, and uses and transmits voltage to the voltage level on end points DT or in receiving endpoint DT.
Additionally, after certification demand terminates, auxiliary processing module 222 can know the voltage change curve of battery module 210 by the change in voltage on monitoring end points DT.
Subsidiary one is mentioned that, the action of the voltage in the action of upper pull-up voltage VUP that auxiliary processing module 222 provides and receiving endpoint DT can be completed by a foot position of the universal input/output port of Main Processor Unit 221.In other words, auxiliary processing module 222 can in build in Main Processor Unit 221.
Illustrate, referring to Fig. 4 A and Fig. 4 B, Fig. 4 A and Fig. 4 B, the oscillogram that the information between battery authentication module and battery module transmits respectively, in figs. 4 a and 4b, be the transmission utilizing single line connection protocol to carry out data between battery authentication module and battery module.Wherein, in the illustrating of Fig. 4 A, in time interval T0, auxiliary processing module provides upper pull-up voltage VUP also to make the voltage level of end points DT maintain the voltage level approximating pull-up voltage VUP.In time interval T1, Main Processor Unit is then by providing low level voltage persistently to drag down the voltage level of end points DT.In time interval T3, then it is that battery module receives at time interval T1 and knows that certification demand is activated, and correspondence is to drag down the voltage level of end points DT to transmit cognition (acknowledge) signal to battery authentication module.
It should be noted that, between time interval T1 and T2, Main Processor Unit couples the end points of end points DT and is set to input endpoint, use to receive and dominated the change in voltage on the end points DT produced by battery module, to receive the authentication information that authentication circuit is transmitted, and action battery module being authenticated by received authentication information.
In the illustrating of Fig. 4 B, authentication circuit can transmit the authentication information of logical signal by the time length dragging down the voltage of end points DT.As a example by waveform 410, authentication circuit persistently drags down one time interval TL of voltage of end points DT, to use transmission logical signal " 1 ".Relative, as a example by waveform 420, authentication circuit persistently drags down one time interval TH of voltage of end points DT, to use transmission logical signal " 0 ".Wherein, time interval TH is longer than time interval TL.
Certainly, the corresponding relation of the length of the time interval that the voltage of above-mentioned logical signal " 1 " or " 0 " and end points DT is pulled low is to be changed, it is not necessary that fixing and can not change.
Hereinafter refer to another embodiment that Fig. 5, Fig. 5 illustrate the battery authentication module 220 of the embodiment of the present invention.Battery authentication module 220 includes Main Processor Unit 221, auxiliary processing module 223 and 224, divider resistance RBAT and RBAT_ID and resistance RESD.The embodiment illustrated with Fig. 3 differs, and in present embodiment, battery authentication module 220 includes two auxiliary processing module 223 and 224.One of them of auxiliary processing module 223 and 224 in order to provide pull-up voltage when being authenticated demand, and another of auxiliary processing module 223 and 224 is then analog-digital converter, in order to detect the magnitude of voltage on end points DT before being authenticated demand.
It addition, the auxiliary processing module 223 or 224 as analog-digital converter by the change in voltage on monitoring end points DT, can also know the voltage change curve of battery module 210 after certification demand terminates.
Hereinafter then refer to the authentication method of battery module that Fig. 6, Fig. 6 illustrate the electronic installation of one embodiment of the invention.Electronic installation therein has battery authentication module, and the authenticating step of the present embodiment includes: first, reads the voltage level of battery authentication module and the connection end point of battery module, and obtains the type information (S610) of battery module according to voltage level.Then, by battery authentication module transmission certification demand to authentication circuit (S620).Finally, then making end points transmission authentication information that authentication circuit is connected with battery module by battery authentication module according to certification demand to battery authentication module (S630), namely foundation single line connection protocol transmits authentication information to battery authentication module.
About the details of authentication method of battery module of the electronic installation of the present invention, all it is discussed in detail in aforesaid embodiment and embodiment, below pardons seldom repeating.
In sum, the present invention knows the type information of battery module except the voltage swing on the junction point according to battery module and battery authentication module, more by being transmitted authentication information to battery authentication module by battery module.And thereby by battery authentication module, battery module is carried out certification more accurately, consequently, it is possible to the battery module only complying fully with the genuine of specification can pass through certification, the battery module of non-original factory will not pass through certification and misapplied.Effectively eliminating is because using the phenomenon of the damage of the electronic installation caused to bad battery.
Although the present invention is open as above with embodiment; so it is not limited to the present invention; without departing from the spirit and scope of the present invention, when making a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on the defined person of appended claims for those skilled in the art.
Claims (18)
1. an electronic installation, including:
One battery module, has an authentication circuit and and identifies resistance, and wherein this identification resistance is coupled to one first reference voltage；And
One battery authentication module, there is a reference resistance and be coupled to one second reference voltage, when this battery module is connected to this battery authentication module, this reference resistance and this identification resistance be serially connected with this first and this second reference voltage between, this battery authentication module couples voltage level a little to obtain a type information of this battery module according to this reference resistance and this identification resistance, this battery authentication module the certification demand that transmits are to this authentication circuit, this authentication circuit is made to transmit an authentication information to this battery authentication module by the path that couples of this reference resistance Yu this identification resistance, wherein this battery authentication module includes:
One Main Processor Unit, is coupled to this reference resistance and does not couples the end points of this second reference voltage；
One first auxiliary processing module, is coupled to this Main Processor Unit；And
One first divider resistance, be coupled in this first auxiliary processing module and this Main Processor Unit couples between path,
Wherein, the resistance value of this first divider resistance is less than the resistance value of this reference resistance.
2. electronic installation as claimed in claim 1, wherein this authentication circuit transmits this authentication information to this battery authentication module according to a single line connection protocol.
3. electronic installation as claimed in claim 1, wherein in this battery module, one end of this identification resistance is coupled to this first reference voltage, and the other end of this identification resistance is coupled to this authentication circuit.
4. electronic installation as claimed in claim 1, wherein this first auxiliary processing module couples voltage a little to obtain the type information of this battery module according to read this reference resistance and this identification resistance.
5. electronic installation as claimed in claim 4, wherein this first auxiliary processing module includes:
One analog-digital converter, receives and this reference resistance of converting analogue form and voltage a little that couples of this identification resistance are number format, and couples voltage a little to obtain the type information according to this reference resistance of number format and this identification resistance.
6. electronic installation as claimed in claim 1, wherein this first auxiliary processing module provides on one pull-up voltage to this first divider resistance, further, this Main Processor Unit transmits a low level voltage and couples a little, to use this certification demand of startup to this reference resistance and this identification resistance.
7. electronic installation as claimed in claim 6, wherein the magnitude of voltage of this low level voltage is less than the magnitude of voltage of pull-up voltage on this.
8. electronic installation as claimed in claim 1, after wherein this certification demand terminates, this first auxiliary processing module reads and records the change in voltage coupled a little of this reference resistance and this identification resistance, and this Main Processor Unit couples the end points of this reference resistance and is set to input endpoint.
9. electronic installation as claimed in claim 1, wherein build in this Main Processor Unit in this first auxiliary processing module, and is coupled to this first divider resistance by a foot position of the one of this Main Processor Unit universal input/output port.
10. electronic installation as claimed in claim 1, the most also includes:
One second auxiliary processing module；And
One second divider resistance, its one end is coupled to this reference resistance and is not coupled to the end points of this second reference voltage, and its other end is coupled to this second auxiliary processing module.
11. electronic installations as claimed in claim 10, wherein this first auxiliary processing module couples voltage a little to obtain the type information of this battery module according to read this reference resistance and this identification resistance.
12. electronic installations as claimed in claim 11, wherein this first auxiliary processing module is an analog-digital converter, receive and this reference resistance of converting analogue form and voltage a little that couples of this identification resistance are number format, and couple voltage a little to obtain the type information according to this reference resistance of number format and this identification resistance.
13. electronic installations as claimed in claim 10, when wherein this battery authentication module transmits this certification demand to this authentication circuit, in this second auxiliary processing module offer one, pull-up voltage is to this second divider resistance, this Main Processor Unit also transmits a low level voltage and couples a little, to use this certification demand of startup to this reference resistance and this identification resistance.
14. electronic installations as claimed in claim 13, wherein the magnitude of voltage of this low level voltage is less than the magnitude of voltage of pull-up voltage on this.
15. electronic installations as claimed in claim 10, wherein build in this Main Processor Unit in this first auxiliary processing module, and are coupled to this first divider resistance by a foot position of the one of this Main Processor Unit universal input/output port.
The authentication method of the battery module of 16. 1 kinds of electronic installations, this electronic installation has a battery authentication module, including:
Read a voltage level of this battery authentication module and the connection end point of this battery module, and obtain a type information of this battery module according to this voltage level；
A certification demand is transmitted to this authentication circuit by this battery authentication module；
This authentication circuit is made to transmit an authentication information to this battery authentication module according to this certification demand by the end points that this battery authentication module is connected with this battery module；
The auxiliary processing module making this battery authentication module provides pull-up voltage on to the connection end point of this battery authentication module Yu this battery module；And
And make a Main Processor Unit of this battery authentication module transmit a low level voltage to couple a little to this battery authentication module and this battery module, to use this certification demand of startup,
Wherein the magnitude of voltage of this low level voltage is less than the magnitude of voltage of pull-up voltage on this.
The authentication method of 17. battery modules as claimed in claim 16, wherein this authentication circuit transmits this authentication information to this battery authentication module according to a single line connection protocol.
The authentication method of 18. battery modules as claimed in claim 16, the most also includes:
After this certification demand terminates, this auxiliary processing module is made to read and record the change in voltage on the end points that this battery authentication module is connected with this battery module.
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| CN201110152638.3A CN102820970B (en) | 2011-06-08 | 2011-06-08 | Electronic installation and the authentication method of battery module thereof |
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| CN201110152638.3A CN102820970B (en) | 2011-06-08 | 2011-06-08 | Electronic installation and the authentication method of battery module thereof |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103078363A (en) * | 2012-12-13 | 2013-05-01 | 广东欧珀移动通信有限公司 | Battery cell identification circuit and identification method thereof |
| CN103117580B (en) * | 2013-02-19 | 2015-08-19 | 惠州Tcl移动通信有限公司 | Mobile terminal and the battery with battery compatibility function use, charge control method |
| CN105354125A (en) * | 2015-09-25 | 2016-02-24 | 联想(北京)有限公司 | Information processing method, battery and electronic device |
| CN108702007A (en) * | 2017-02-16 | 2018-10-23 | 深圳市大疆灵眸科技有限公司 | Method of supplying power to, for electric installation and electronic device |
| CN110346732B (en) * | 2019-07-23 | 2021-09-14 | 广东以诺通讯有限公司 | Battery detection method and device based on characteristic value identification |
| CN113270649B (en) * | 2020-02-17 | 2024-01-30 | 丰田自动车株式会社 | Battery control device, battery control method, storage medium, and vehicle |
| US11621036B2 (en) * | 2020-07-14 | 2023-04-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method of operating an integrated circuit and integrated circuit |
| CN112332497A (en) * | 2020-11-24 | 2021-02-05 | 深圳市神舟创新科技有限公司 | Notebook computer battery identification method |
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| CN1214555A (en) * | 1994-03-15 | 1999-04-21 | 艾利森公司 | Rechargeable buttery pack with identification circuit, real time clock and authentication capability |
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| US7715884B2 (en) * | 2005-10-14 | 2010-05-11 | Research In Motion Limited | Mobile device with a smart battery having a battery information profile corresponding to a communication standard |
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| US5237257A (en) * | 1989-04-21 | 1993-08-17 | Motorola, Inc. | Method and apparatus for determining battery type and modifying operating characteristics |
| CN1214555A (en) * | 1994-03-15 | 1999-04-21 | 艾利森公司 | Rechargeable buttery pack with identification circuit, real time clock and authentication capability |
| CN1134874C (en) * | 1997-10-28 | 2004-01-14 | 艾利森电话股份有限公司 | An identification arrangement and method |
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