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| Patents for H04J 13 - Code division multiplex systems (21,510) |
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| 01/26/1982 | US4313197 Spread spectrum arrangement for (de)multiplexing speech signals and nonspeech signals | | 12/09/1981 | EP0041253A1 Transmitter-receiver to be coupled to a directional transmission line of a spread-spectrum multiplex communication network | | 11/17/1981 | US4301530 Orthogonal spread spectrum time division multiple accessing mobile subscriber access system | | 10/06/1981 | US4293953 Bi-orthogonal PCM communications system employing multiplexed noise codes | | 06/02/1981 | US4271524 Spread spectrum FH-MFSK receiver | | 04/22/1981 | EP0027413A1 System for the simultaneous integral multiple-access transmission over optical fibre transmission lines | | 07/29/1980 | US4215244 Self-adaptive mobile subscriber access system employing time division multiple accessing | | 01/16/1979 | CA1046669A1 Spread spectrum communication techniques for a code division message multiplexing system | | 08/10/1976 | US3974339 Method of transmitting digital information in a time-division multiplex telecommunication network | | 01/20/1976 | US3934203 Spread spectrum modem |
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