Method and apparatus for transmission of data and voice
First Claim
1. An apparatus for transmitting data signals over a telephone landline or a cellular telephone system and for transmitting voice signals over the telephone landline or the cellular telephone system, comprising:
- a modem for converting received digital signals to analog signals and for converting received analog signals to digital signals;
a data access arrangement operatively connected to said modem and including means to operatively connect to the telephone landline;
a microcontroller operatively connected to said modem;
a read-only memory operatively connected to said microcontroller;
protocol software in said read-only memory in the form of firmware for controlling the operation of the apparatus;
a cellular telephone interface for connecting said microcontroller to a control unit and a transceiver unit of the cellular telephone;
means for providing voice communications over the telephone landline or the cellular telephone system;
a first analog switch for receiving input firm said means for providing voice communications and providing outputs to said data access arrangement and said transceiver unit of said cellular telephone;
a second analog switch for receiving input from said control unit of said cellular telephone and providing outputs to said data access arrangement and said transceiver unit of said cellular telephone;
a third analog switch for receiving input from said modem and providing outputs to said data access arrangement and said transceiver unit of said cellular telephone; and
means to connect data terminal equipment to said microcontroller through an interface.
8 Assignments
0 Petitions
Accused Products
Abstract
A modem-controller for auto switching and controlling the transmission and receiving of voice and error-free transmission of standard data signals, fax data signals and voice communications over telephone line service, radio frequency networks, satellite systems, as well as cellular telephone systems includes analog switches that receive control signals from the micro-controller for controlling and switching the audio or data path of an internal voice board and the analog signals from a modem to and from a radio frequency transceiver via a radio frequency transceiver interface/logic board, a cellular telephone transceiver via a cellular telephone transceiver interface, a telephone landline via a data access arrangement (DAA), a satellite system via a telephone landline through the DAA. A method selects the DAA which either connects to the telephone line, the satellite system or the cellular telephone, and another method bypasses the DAA, selects and controls radio frequency telemetry modules or packet radios. The operation of the modem-controller is divided into three modes comprising a command mode, a data mode and an escape mode. The software is a set of data communication protocols which provide error-free communication of data and define a file transfer protocol at the application layer, the session protocol and the link protocol.
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Citations
22 Claims
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1. An apparatus for transmitting data signals over a telephone landline or a cellular telephone system and for transmitting voice signals over the telephone landline or the cellular telephone system, comprising:
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a modem for converting received digital signals to analog signals and for converting received analog signals to digital signals; a data access arrangement operatively connected to said modem and including means to operatively connect to the telephone landline; a microcontroller operatively connected to said modem; a read-only memory operatively connected to said microcontroller; protocol software in said read-only memory in the form of firmware for controlling the operation of the apparatus; a cellular telephone interface for connecting said microcontroller to a control unit and a transceiver unit of the cellular telephone; means for providing voice communications over the telephone landline or the cellular telephone system; a first analog switch for receiving input firm said means for providing voice communications and providing outputs to said data access arrangement and said transceiver unit of said cellular telephone; a second analog switch for receiving input from said control unit of said cellular telephone and providing outputs to said data access arrangement and said transceiver unit of said cellular telephone; a third analog switch for receiving input from said modem and providing outputs to said data access arrangement and said transceiver unit of said cellular telephone; and means to connect data terminal equipment to said microcontroller through an interface. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for transmission of data signals over a telephone landline, a wireless radio frequency network or a cellular telephone system and for transmitting voice signals over the telephone landline, the wireless radio frequency network or a cellular telephone system, comprising:
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a modem for converting received digital signals to analog signals and for converting received analog to digital signals; a data access arrangement operatively connected to said modem and including a means to operatively connect to the telephone landline; a microcontroller operatively connected to said modem; a read-only memory operatively connected to said microcontroller; protocol software in said read-only memory in the form of firmware for controlling the operation of the apparatus; a cellular telephone interface for connecting said microcontroller to a cellular telephone transceiver unit; a radio frequency interface/logic for connecting said microcontroller to a radio frequency transceiver unit; means for providing voice communication using a microphone and speaker over a telephone landline, a wireless radio frequency network or a cellular telephone system; a plurality of analog switches for operatively connecting said means for providing voice communications, said radio frequency transceiver, said cellular telephone to said data access arrangement; and means to connect data terminal equipment to said microcontroller through an interface. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus for transmission of data signals over ordinary telephone line service, radio frequency network or a cellular telephone system and for transmitting voice signals over the telephone line service, the radio frequency network and the cellular telephone system, comprising:
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a modem for converting received digital signals to analog signals and for converting received analog to digital signals; a data access arrangement operatively connected to said modem and including a means to operatively connect to a telephone line; a microcontroller operatively connected to said modem; a read-only memory operatively connected to said microcontroller; protocol software in said read-only memory in the form of firmware for controlling the operation of the apparatus; a cellular telephone interface for connecting said microcontroller to a cellular telephone unit; radio frequency interface/logic for connecting said microcontroller to radio frequency telemetry modules or packet radios; means for providing voice communication using a microphone and speaker over the telephone line, the wireless radio frequency network or the cellular telephone system; a plurality of analog switches for receiving inputs from said means for providing voice communications, said radio frequency telemetry modules or packet radios, said cellular telephone, said data access arrangement and said modem and providing outputs to said modem, said data access arrangement, said radio frequency telemetry modules or packet radios, and said cellular telephone; and means to connect data terminal equipment to said microcontroller through an interface. - View Dependent Claims (12, 13, 14, 15, 21)
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16. An apparatus for transmission of standard or fax data signals over ordinary telephone line service, radio frequency network, satellite system or a cellular telephone system and for transmitting voice signals over the telephone line service, the radio frequency network, the satellite system and the cellular telephone system, comprising:
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a modem for converting received digital signals to analog signals and for converting received analog to digital signals; a data access arrangement operatively connected to said modem and including a means for operatively connecting to a telephone line; a microcontroller operatively connected to said modem; a read-only memory operatively connected to said microcontroller; protocol software in said read-only memory in the form of firmware for controlling the operation of the apparatus; a cellular telephone interface for connecting said microcontroller to a cellular telephone unit; a radio frequency interface for connecting said microcontroller to a radio frequency telemetry module or packet radio unit; means for providing voice communication using a microphone and speaker over the telephone line, the wireless radio frequency network, the satellite system or the cellular telephone system; a plurality of analog switches controlled by said microprocessor to control input and output of said means for providing voice communications or said modem to said radio frequency interface and to said data access arrangement to said cellular telephone means, said satellite system and a remote device or infrared transceiver. - View Dependent Claims (17, 18, 19, 20, 22)
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Specification