Patent ID: 7712669

Claim:
A handheld wireless communications device having at least one antenna, comprising: a terminal that has a microphone and a speaker that provide voice input/output; a wireless transceiver arranged to transmit and receive radio frequency signals including voice signals, the transceiver being operatively coupled with the at least one antenna, the transceiver being operatively coupled to a rechargeable battery, wherein the wireless transceiver comprises at least one transmitter circuitry and at least one receiver circuitry, wherein the transmitter circuitry comprises a transmitter, a transmitter level adjust circuitry, a low pass filter and a modulation-generator-and-limiter circuitry, wherein the modulation-generator-and-limiter circuitry is coupled to the low pass filter which, in turn, is coupled to the transmitter level adjust circuitry which, in turn, is coupled to the transmitter, wherein the receiver circuitry comprises a receiver, a second low pass filter and data recovery circuitry, wherein the receiver is coupled to the second low pass filter which, in turn, is coupled to the data recovery circuitry, wherein the modulation-generator-and-limiter circuit is coupled to an output of a processor and wherein the data recovery circuitry is coupled to an input of the processor; a CCD sensor that senses an optical image; and a connector arranged to couple the wireless transceiver with the terminal and to transmit signals, wherein the wireless transceiver is housed in a module that can be removed from the handheld wireless communications device and replaced with a different type of module without requiring tuning adjustments.