Interface for connecting computers to radio telephone networks
DCFirst Claim
1. An interface device for connecting a cellular data modem for transmission of computer data to a cellular telephone device, said cellular telephone device including a cellular bus, comprising:
- a. analog interface means connectable between the cellular data modem and the cellular bus for transmitting signals representing computer data between the data modem and the cellular bus;
b. processing means connectable to the cellular data modem and the cellular bus for receiving generic digital command signals from the cellular data modem, processing the generic command signals to generate device-specific cellular telephone control signals adapted to control operation of the specific cellular telephone device attached to the interface device, and transmitting the device-specific cellular telephone control signals to the cellular bus.
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Accused Products
Abstract
A system for connecting a computer to both cellular and landline telephone systems is disclosed. A cellular modem has a single RJ-11 jack for interfacing either to a landline jack or to a signal processing cable connected to a cellular transceiver. The analog data transmission signals of the modem, which are compatible with landline "tip" and "ring" lines, are provided on the third and fourth pins of the RJ-11 connector. When the modem is to be used as a landline modem, the RJ-11 connector is connected directly to a standard landline telephone jack using an ordinary modular telephone wire. When used with a cellular transceiver, the modem generates transceiver operation commands according to a predefined generic command language which is not specific to a particular transceiver. The generic commands are transmitted in serial digital form on the fifth terminal of the RJ-11 connector. The signal processing cable acknowledges the commands received via a serial digital signal transmitted to the second terminal of the RJ-11 connector. The signal processing cable then transmits control signals to the transceiver, with the signals being appropriate to the type of cellular transceiver used, to produce the function requested by the modem'"'"'s universal command.
220 Citations
29 Claims
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1. An interface device for connecting a cellular data modem for transmission of computer data to a cellular telephone device, said cellular telephone device including a cellular bus, comprising:
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a. analog interface means connectable between the cellular data modem and the cellular bus for transmitting signals representing computer data between the data modem and the cellular bus; b. processing means connectable to the cellular data modem and the cellular bus for receiving generic digital command signals from the cellular data modem, processing the generic command signals to generate device-specific cellular telephone control signals adapted to control operation of the specific cellular telephone device attached to the interface device, and transmitting the device-specific cellular telephone control signals to the cellular bus. - View Dependent Claims (2)
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3. An interface circuit for connecting a computing device to an access device for a radiotelephone network, comprising:
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a first information bus for transmitting data signals between the computing device and the access device; a second information bus for carrying digital control signals in a standardized command language, said language including commands for controlling telephone dialing on said radiotelephone network; translating means connected between the second information bus and the access device for receiving the standardized command language signals and processing said signals to produce internal command language signals emulating internal command language signals generated by a control unit of the access device and controlling operations in the access device, said internal command language signals being generated in accordance with the standardized command language signals received. - View Dependent Claims (4)
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5. A modem interface for connecting a modem to facilitate data transmission over one of at least two types of public communications networks including at least one radiotelephone network which can be selectively accessed through associated communications network access devices connectable to the interface, comprising:
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a telephone connector having a plurality of pin connections including tip and ring pins located to operatively connect to a standard landline telephone cable carrying tip and ring lines; a first information bus for transmitting data signals between the modem and the access device and connected through said telephone connector to said tip and ring pins; a second information bus for carrying digital control signals from the modem for controlling dialing operations on said radiotelephone network, and connected to pin connections of said telephone connector other than said tip and ring pins; whereby said telephone connector provides a tip and ring interface between said modem and said communications network access device when said standard landline telephone cable is connected therebetween and provides a digital interface permitting the modem to control dialing operations of said communications network access device associated with said radiotelephone network when a cable providing connections to said second information bus is connected therebetween.
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6. An interface device for connecting a data modem for transmission of computer data to a radiotelephone device, said radiotelephone device including a radiotelephone bus, comprising:
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a. analog interface means connectable between the data modem and the radiotelephone bus for transmitting signals representing computer data between the data modem and the radiotelephone bus; b. processing means connectable to the data modem and the radiotelephone bus by a pathway separate from said analog interface means for receiving generic digital command signals from the data modem, processing the generic digital command signals to generate device-specific cellular telephone control signals controlling operation of the specific radiotelephone device attached to the interface device, and transmitting the device-specific radiotelephone control signals to the radiotelephone bus.
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7. An interface circuit for connecting a computing device to one of a plurality of access devices for a radio communications network to achieve data transfer with a remote station, comprising:
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computer interface means for transferring information between the interface circuit and a portable personal computing device; cable means for establishing predetermined line connections to a specified one of said access devices in said radio communications network to control address specification and data transmission functions of the access device; information storage means for receiving and storing at least one of a plurality of possible program data sets defining digital control signals for at least one type of radio communications network access device bus, according to a standard protocol of said bus, and for defining line connections over which said signals are to be transmitted in conjunction with said predetermined line connections established by said cable means; and control means connected to the computer interface means, the cable means, and the information storage means for receiving operational commands from the portable personal computing device, and in response to said commands retrieving a program data set from the program storage means compatible with the access device connected to said cable means, generating addressing signals to initiate data transfer with the remote station using said access device and said radio communications network, and for transferring data with the remote station. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An interface circuit for connecting a computing device to an access device for a radio communications network to achieve data transfer with a remote station, comprising:
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computer connection means for receiving and processing information from a portable personal computing device and for processing and transmitting information to the portable personal computing device; control means connected to the computer connection means for receiving operational commands from the portable personal computing device, and in response to said commands retrieving a program data set and generating addressing signals to initiate data transfer with the remote station using said access device and said radio communications network; and an access-device-specific operating combination, including a cable means for establishing predetermined line connections to a specified one of said access devices in said radio communications network to control address specification and data transmission functions of the access device, said cable means having a connector compatible with a connector of the access device, and a program data set defining digital control signals for the access device in conjunction with said predetermined line connections. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification