Abstract: The present invention is directed to a computer system that has at least two computers which are connected via cordless telephone. The handset of the cordless telephone is integrated with a portable computer and the base station of the cordless telephone is integrated with a regular desktop or desk-side computer. The hand-held computer includes a microprocessor, a display, storage, a keypad to enter data, a microphone to receive voice data and speak to play voice data, and an antenna to communicate with the base station. The base station includes receiver and transmitter and an antenna, signal controller and the means for acting to a telephone system. The apparatus can be adapted for use with a television and a VCR.

Abstract: A portable or notebook type computer communication interface that permits portable computers to be reliably used in a data processing network. The interface involves communication circuitry, special device inputs and power monitoring and charging. A flexible portable computer wireless time and frequency division network is formed using a time and frequency division multiplexed communication channel assignment feature that together with a wireless link establishes a unique direct communication channel between data processing devices on different levels with data packet type transmission security. The principle permits each portable computer in the network to communicate with any other and any and all can transmit and receive at the same time.