Title: Production of pseudo-random binary signal sequences

Abstract: A pseudo-random binary sequence having a long period duration is generated by producing a plurality of respectively different first binary signal sequences, supplying at least one of the first signal sequences to at least one input of a feedback connected shift register having an original signal sequence in order to produce an interfering signal which alters the signal sequence being produced by the shift register, and interchanging the first signal sequences supplied to the shift register under the control of signals from a setting program and/or control signals derived from the signal sequences produced in the course of the process. When more than one shift register output is employed, the signals at the outputs are linked together by a logic circuit to form the pseudo-random binary signal sequence of long duration.

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Inventors: Glitz, Ekkehard (Backnang, DT)

Application Number: 627312
Filing Date: 1975-10-30
Publication_date: 1977-06-28
Assignee: Licentia Patent-Verwaltungs-GmbH (Frankfurt am Main, DT)
Primary Class(es): 708/250 331/78, 708/252
Other Classes:
US Patent Ref:

3366779	Jan, 1968	Catherall et al.	235/152.
3633015	Jan, 1972	Lee	235/152.
3911216	Oct, 1975	Bartek et al.	178/22.
3920894	Nov, 1975	Shirley et al.	178/22.

Other Refs:
Primary Examiner: Malzahn, David H.
Assistant Examiner:
Attorney: Spencer & Kaye