Means of communication between a battery pack and a battery powered device
First Claim
1. A system for communicating between a battery pack and a battery powered device connected through an interface having at least two terminals, comprising:
- means within the battery powered device for selectively altering a voltage across the interface terminals between the battery pack and the battery powered device, the altered voltage across the interface terminals representing a binary-encoded signal; and
means within the battery pack responsive to the binary-encoded signal for controlling a device associated with the battery pack.
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Accused Products
Abstract
An apparatus enabling communication and control between a battery powered device, such as a cellular telephone, and a battery pack through a two-pin interface between the battery pack and the battery powered device is disclosed. A battery powered device includes means for selectively switching a load across the two-pin interface for the device. By selectively switching the load across the terminal of the interface, a voltage varying signal is generated. The creation of the voltage varying signal is controlled in such a manner that alterations in the voltage represent a binary-encoded signal. The voltage changes representing the binary-encoded signal are detected within a battery pack interconnected with the battery powered device and used to provide instructions to a controller controlling an apparatus associated with the battery pack device, such as vibrator alarm.
28 Citations
24 Claims
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1. A system for communicating between a battery pack and a battery powered device connected through an interface having at least two terminals, comprising:
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means within the battery powered device for selectively altering a voltage across the interface terminals between the battery pack and the battery powered device, the altered voltage across the interface terminals representing a binary-encoded signal; and means within the battery pack responsive to the binary-encoded signal for controlling a device associated with the battery pack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for communicating between a battery pack and a battery powered device connected by at least two interface terminals, comprising:
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a load element connected across the interface terminals for altering the voltage across the interface terminals, the altered voltage across the interface terminals representing a binary-encoded signal; means for selectively connecting the load element across the interface terminals; means within the battery pack for detecting the binary-encoded signal; and a controller responsive to the binary-encoded signal for controlling a device associated with the battery pack. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A battery pack capable of communicating with a battery powered device through a dual pin interface comprising:
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means for detecting voltage changes across the dual pin interface, the voltage changes representing a binary-encoded signal; a device associated with the battery pack; and a controller responsive to the binary-encoded signal for controlling the device associated with the battery pack. - View Dependent Claims (20, 21, 22, 23)
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24. A battery powered device capable of communicating with a battery pack through a dual pin interface, comprising:
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a load element for altering the voltage across the dual pin interface, the voltage changes representing a binary-encoded signal; a controller for generating control signals to generate the desired binary-encoded signal; and a switch connected in series with the load element and responsive to the control signal.
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Specification