Database system having a plurality of nodes communicating with e

Datacarriers with separate storage of read and write-inhibited m

DC bus for discrete signals

Dead switch vehicle operator identification

Debit message authorization system for radio receivers

Decentralized line reservation interface within a local data net

Decoder circuit

Decoder circuitry for selectively activating loads

Decoder for transmitted message deactivation code

Decoder/multiplexer circuit including multi-emitter transistors

Decoding apparatus and method for a position coded pulse communi

Decoding arrangements for synchronous receivers

Decryption and encryption transmitter/receiver with self-test, l

Delivery box system and reserving method and charging method...

Delta network control of a cross-point switch

Delta network of a cross-point switch

Delta network of a cross-point switch

Demand driven access mechanism

Demand driven access mechanism

Depth dependent multiple logging system