Portable hybrid communication system and methods
DCFirst Claim
1. A portable hybrid communications system comprising:
- (a) entry means for entering a data signal;
(b) public telephone network connection means for accessing a public telephone network in response to public telephone accessing control signals;
(c) modem means for modulating and demodulating data signals;
(d) cellular transceiving means for accessing a cellular network in response to cellular network accessing control signals;
(e) analog switch means connected to the public telephone network connection means, to the cellular transceiving means, and to the modem means;
(f) digital data connecting means for selectively creating a digital data transmission connection with the cellular transceiving means;
(g) central processing means connected with said entry means, said public telephone network connection means, said modem means, said analog switch means, and said digital data connection means for generating public telephone accessing control signals and cellular network accessing control signals and for selectively operably connecting the modem means to either the public telephone network or the cellular network so that the central processing means may transmit or receive information over the public or cellular network.
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Litigations
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Accused Products
Abstract
A laptop device includes a personal computer, a cellular transceiver, a speakerphone, and a hybrid communications control unit. The device has connectors for attaching a headset, cellular control unit, land telephone line, and additional speakers and microphones. The microprocessor-controlled hybrid communications control unit includes a modem, a data access arrangement, and a tone generator as well as digital, analog, and power switches. The hybrid communications control unit switches the communications components and provides, under program control, the proper protocols, level, and impedance matching to connect the modem, speakerphone, headset, speaker/microphone, or cellular control unit to the landline or to the cellular network via the transceiver. Matching and switching operations are automatic and transparent to the user. The unit can also connect two of the terminal devices or connect the cellular and landlines for call relaying. The device is capable of connecting plural calls at the same time. The hybrid communications control unit may be controlled by its internal firmware, by toggle switches, or by commands issued from the personal computer.
504 Citations
24 Claims
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1. A portable hybrid communications system comprising:
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(a) entry means for entering a data signal; (b) public telephone network connection means for accessing a public telephone network in response to public telephone accessing control signals; (c) modem means for modulating and demodulating data signals; (d) cellular transceiving means for accessing a cellular network in response to cellular network accessing control signals; (e) analog switch means connected to the public telephone network connection means, to the cellular transceiving means, and to the modem means; (f) digital data connecting means for selectively creating a digital data transmission connection with the cellular transceiving means; (g) central processing means connected with said entry means, said public telephone network connection means, said modem means, said analog switch means, and said digital data connection means for generating public telephone accessing control signals and cellular network accessing control signals and for selectively operably connecting the modem means to either the public telephone network or the cellular network so that the central processing means may transmit or receive information over the public or cellular network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification