Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
229 words
A communication system for a vehicle, comprising: a switched-circuit cellular radio communication transceiver located in said vehicle; a first CDPD network data transceiver located in said vehicle; a second network data connection means located at a site remote from said vehicle, and communicating with said first CDPD transceiver by way of said network; a speech-to-signal converter; a vocoder transmitter coupled to said speech-to-signal converter and to said second network data transceiver, for reducing the data rate of uncompressed speech signals coupled from said speech-to-signal converter to said second network data transceiver, whereby the reduced-data-rate speech signals are generated at the output of said first CDPD network data transceiver; a vocoder receiver coupled to said output of said first CDPD network data transceiver, for generating uncompressed signals which represent a synthesized version of said uncompressed speech signals; control means coupled to said first CDPD network data transceiver and to said switched-circuit cellular radio communication transceiver, for responding to commands transmitted over said second network data transceiver by enabling said switched-circuit cellular radio communication transceiver for dialing a particular telephone number, and for coupling said uncompressed signals to said vocoder receiver to said switched-circuit cellular radio communication transceiver, whereby speech signals from said speech-to-signal converter are compressed, transmitted over said CDPD network to said vehicle, uncompressed, and retransmitted over said circuit-switched cellular radio transceiver to be received by the accessed number.
Claim 2
Dependent Claim
229 words
A communication system for a vehicle, comprising: a switched-circuit cellular radio communication transceiver located in said vehicle; a first CDPD network data transceiver located in said vehicle; a second network data connection means located at a site remote from said vehicle, and communicating with said first CDPD transceiver by way of said network; a speech-to-signal converter; a vocoder transmitter coupled to said speech-to-signal converter and to said second network data transceiver, for reducing the data rate of uncompressed speech signals coupled from said speech-to-signal converter to said second network data transceiver, whereby the reduced-data-rate speech signals are generated at the output of said first CDPD network data transceiver; a vocoder receiver coupled to said output of said first CDPD network data transceiver, for generating uncompressed signals which represent a synthesized version of said uncompressed speech signals; control means coupled to said first CDPD network data transceiver and to said switched-circuit cellular radio communication transceiver, for responding to commands transmitted over said second network data transceiver by enabling said switched-circuit cellular radio communication transceiver for dialing a particular telephone number, and for coupling said uncompressed signals to said vocoder receiver to said switched-circuit cellular radio communication transceiver, whereby speech signals from said speech-to-signal converter are compressed, transmitted over said CDPD network to said vehicle, uncompressed, and retransmitted over said circuit-switched cellular radio transceiver to be received by the accessed number.
Claim 3
Dependent Claim
22 words
A system according to claim 1, wherein said second network data transceiver comprises a LAN connected to a port of said network.
Claim 4
Dependent Claim
14 words
A communications system according to claim 1, wherein said particular telephone number is 911.
Claim 5
Dependent Claim
56 words
A communications system according to claim 1, wherein said vehicle further comprises: a GPS receiver for generating signals representing the location of said vehicle signal-to-speech conversion means coupled to said GPS receiver and to said circuit-switched cellular radio transmitter, for automatically converting said signals representing the location of said vehicle into speech signals having like import.