Portable communication device and accessory system
First Claim
1. A communication system having a portable mode and a non-portable mode, said communication system comprising:
- a portable communication device for transmitting and receiving a communication signal, said portable communications device having a digital communication bus; and
at least one external accessory, coupled to said digital communications bus, said digital communications bus for exchanging digital audio data and control commands between said portable communication device and said at least one external accessory in full duplex when in said non-portable mode.
1 Assignment
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Accused Products
Abstract
A portable communications device and accessory system which enables both voice and control commands to be communicated between a portable communication device and external accessories over a single flexible digital interface. When the portable communication device is interfaced to external accessories, such as a power booster and hands-free kit, a microprocessor configures the serial communications bus to pass both the digital voice data and digital control commands to and from the external power booster and the hands-free kit. The external hands-free kit contains its own auxiliary CODEC for encoding analog voice signals and decoding the digital voice data. When the portable communication device is not interfaced with external accessories, the microprocessor configures the serial communication bus to pass the digital voice data to and from an internal CODEC for use with the portable device'"'"'s own microphone and speaker.
280 Citations
10 Claims
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1. A communication system having a portable mode and a non-portable mode, said communication system comprising:
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a portable communication device for transmitting and receiving a communication signal, said portable communications device having a digital communication bus; and at least one external accessory, coupled to said digital communications bus, said digital communications bus for exchanging digital audio data and control commands between said portable communication device and said at least one external accessory in full duplex when in said non-portable mode. - View Dependent Claims (2, 3, 4)
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5. A portable radiotelephone for transmitting and receiving a communication signal, said portable radiotelephone having a portable mode and a non-portable mode, said portable radiotelephone interfacing with at least one external accessory when in said non-portable mode, said portable radiotelephone comprising:
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a digital signal processor, for digitally processing said communication signal; a digital communication bus, coupled to said digital processor, for exchanging said communication signal with a primary encoder/decoder when in said portable mode and with said at least one external accessory when in said non-portable mode; and a microprocessor, coupled to said digital signal processor and said digital communication bus, for configuring said digital communication bus to exchange said communication signal between said digital signal processor and said at least one external accessory when in said non-portable mode, and for configuring said digital communication bus to exchange said communication signal between said digital signal processor and said primary encoder/decoder when in said portable mode. - View Dependent Claims (6)
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7. A method of exchanging data between a portable communication device and at least one external accessory in a communication system having a portable mode and a non-portable mode, said portable communication device transmitting and receiving a communication signal, said method comprising the steps of:
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generating, in said portable communication device, accessory control commands when in said non-portable mode; and digitally exchanging said accessory control commands and said communication signal between said portable communication device and said at least one external accessory over a full-duplex digital communication bus when in said non-portable mode. - View Dependent Claims (8, 9, 10)
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Specification