Matches 1 - 27 out of 27
Match Document Document Title
7363034 Cellular docking station  
A system for communicating with the user of a cellular telephone via the cellular mobile radio (CMR) system and the public switched telephone network (PSTN). A communications interface appends the...
7221950 Auto sensing home base station for mobile telephone with remote answering capabilities  
The present invention discloses in one embodiment a mobile telephone capable of communicating with a home base station through radio signals. The mobile telephone registers with a home base station...
7194083 System and method for interfacing plain old telephone system (POTS) devices with cellular networks  
A system and method for interfacing plain old telephone system (PATS) devices with a cellular network is presented. In a broad sense, the system includes an interface that bridges the POTS devices...
7149514 Cellular docking station  
A system for communicating with the user of a cellular telephone via the cellular mobile radio (CMR) system and the public switched telephone network (PSTN). A communications interface appends the...
7130609 Wireless backup telephone device and associated support system  
A wireless telephone backup device for landline telephone equipment that may be located on the customer side of the landline service connection, typically in a restricted access location, such as...
7020208 Differential clock signals encoded with data  
The number of pins on an integrated circuit chip is reduced by encoding control signals into a differential clock. The differential clock has two clock lines with complementary signals that...
6724833 Method and apparatus for communicating information  
A method and apparatus for communicating information between a remote location and a user. Information from the remote location or the user is received by the inventive apparatus and processed by...
6175589 Method and apparatus for communicating information  
A method and apparatus for communicating information between a remote location and a user. Information from the remote location or the user is received by the inventive apparatus and processed by...
6081856 Adapter and method for emulating the operation of a peripheral device of a computer  
A system, apparatus, and method for emulating the operation of a peripheral device of a computer. An adapter for communicating keyboard data to a computer via a data link and for communicating...
5907580 Method and apparatus for communicating information  
A method and apparatus for communicating information between a remote location and a user. Information from the remote location or the user is received by the inventive apparatus and processed by...
5809336 High performance microprocessor having variable speed system clock  
A high performance, low cost microprocessor system having a variable speed system clock is disclosed herein. The microprocessor system includes an integrated circuit having a central processing...
5455774 Interrupt programmable analog-to-digital port  
A voltage monitoring method and apparatus starts with the operation of a normal microcomputer program flow, in a microcomputer (40). An input voltage source (90) is converted to a current digital...
EP0379640B1 Transmission system for a radio transceiver  
Abstract of EP0379640 The object of the invention is to develop a known transmission system for digital and analog signals with a radio transceiver and at least one peripheral unit connected via...
5265093 Hardware interface and protocol for a mobile radio transceiver  
A system and method for communicating control signals between a digital mobile transceiver, a digital control head, and a mobile data terminal over a common serial peripheral bus uses a message...
5248962 Display driver providing positive off-states  
The invention is directed to a display driver for a bar graph display comprising a multi-segment bar graph array. The driver controls the bar graph display to have an OFF-state associated with each...
5206863 Processor-to-processor communications protocol for a public service trunking system  
A downlink between a communications dispatch console and a digitally trunked radio repeater system site controller efficiently transfers message data between the site controller and the console...
5128930 Processor-to-processor communications protocol for a public service trunking system  
A downlink between a communications dispatch console and a digitally trunked radio repeater system site controller efficiently transfers message data between the site controller and the console...
5109543 Hardware interface and protocol for a mobile radio transceiver  
A system and method for communicating control signals between a digital mobile transceiver, a digital control head, and a mobile data terminal over a common serial peripheral bus uses a message...
EP0460951A2 A signal communication system.  
A signal communication system includes a control portion and an operation portion. The control portion has an output data transmitter (6) for transmitting output data to the operation portion in...
5020135 Computerized multistandard, field-convertible, multiregional/multiservice, remote controllable, remote programmable mobile two-way radio system with digital serial bus link, built-in programmer and autodiagnostics  
A Computerized Mobile Two-Way Radio System is provided having microprocessor enhanced capabilities and versatility for wide area/multiple region two-way radio networks with multiple categories of...
5007050 Bidirectional digital serial interface for communication digital signals including digitized audio between microprocessor-based control and transceiver units of two-way radio communications equipment  
A digital serial interface system is provided for communicating digital signals including digitized audio between microprocessor-based Control and Transceiver Units of two-way radio communications...
4959773 Adapter for attaching I/O devices to I/O communications with alternating read and write modes link  
A circuit arrangement (adapter) for attaching a display device to a serial I/O channel is disclosed. The circuit arrangement captures a serial message of indeterminate length and places said...
EP0379640A2 Transmission system for a radio transceiver.  
The object of the invention is to develop a known transmission system for digital and analog signals with a radio transceiver and at least one peripheral unit connected via line connections to a...
4903262 Hardware interface and protocol for a mobile radio transceiver  
A system and method for communicating control signals between a digital mobile transceiver, a digital control head, and a mobile data terminal over a common serial peripheral bus uses a message...
4835731 Processor-to-processor communications protocol for a public service trunking system  
A downlink between a communications dispatch console and a digitally trunked radio repeater system site controller efficiently transfers message data between the site controller and the console...
4680787 Portable radiotelephone vehicular converter and remote handset  
A portable radiotelephone is disclosed in which an associated logic unit communicates via a data bus with an internal keypad and display and a detachable external keypad and display. Capability is...
4654655 Multi-user serial data bus  
A multiple device serial data bus and signalling scheme is described. The serial data bus allows for inter-peripheral communication at a data rate established by a bus control unit. Clocking...
Matches 1 - 27 out of 27