Title: Multiplex signal transmission system

Abstract: A multiplex signal transmission system in which a plurality of information signals, having respectively arbitrary time durations and being arranged in time-serial form, are sequentially divided into a plurality of signal portions by a predetermined time period, said signal portions being successively allocated in time-parallel form to a plurality of transmission channels, each of which has a time duration of said predetermined time period, and being transmitted repeatedly through respectively allocated channels every said time duration, comprises a channel shift means for shifting sequentially the channel allocation of said signal portions at predetermined time periods, and a signal transmitting means for transmitting in time-parallel form said signal portions derived from said channel shift means repeatedly through every preceding channels. Consequently, the transmission line can be efficiently utilized in such a way that, at the sending end, a plurality of information signals having respectively arbitrary time durations are folded into a plurality of transmission channels having given time periods, and besides that, at the receiving end, once a portion of any desired information signal is caught in a corresponding channel, successive signal portions can be derived sequentially from the same channel every said given time periods. Hence, a channel selecting means of a receiver in this system can be simplified.

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Inventors: Yanagimachi, Akio (Kawasaki, JA)
Yamada, Osamu (Kodaira, JA)
Yamane, Hisakichi (Tokyo, JA)
Sawabe, Eiichi (Machida, JA)
Uehara, Takashi (Inagi, JA)
Yoshino, Takehiko (Yokohama, JA)
Takezawa, Teruhiro (Komae, JA)
Masuda, Michio (Tokyo, JA)
Nabeyama, Hiroaki (Yokohama, JA)
Fukuda, Masaaki (Kodaira, JA)
Kayano, Tatsuo (Hachioji, JA)

Application Number: 391977
Filing Date: 1973-08-27
Publication_date: 1976-01-13
Assignee: Nippon Hoso Kyokai (Tokyo, JA); Hitachi, Ltd. (Tokyo, JA); Hitachi Electronics, Ltd. (Tokyo, JA)
Primary Class(es): 348/24 348/483, 348/485, 370/458, 370/468, 370/476, 370/514, 370/538
Other Classes:
US Patent Ref:

3740478	Jun, 1973	Breant et al.	179/15.
3742145	Jun, 1973	Clark et al.	179/15.

Other Refs:
Primary Examiner: Safourek, Benedict V.
Assistant Examiner: Saffian, Mitchell
Attorney: Stevens, Davis, Miller & Mosher