The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 1977
Filed:
Nov. 14, 1974
Kenkichi Umeda, Tokyo, JA;
Shoichi Nakamura, Tokyo, JA;
Jun Takayama, Kokubunji, JA;
Tetsuya Horichi, Yokohama, JA;
Yoshikazu Tsuchiya, Tokyo, JA;
Sony Corporation, Tokyo, JA;
Abstract
A system for handling pulse encoded signals includes several parallel signal paths to carry pulses on which a signal has been encoded. The encoding is based on a predetermined amplitude value, or weight, for each pulse, and each signal path receives all pulses having the same weighting factor. A switching system is provided to switch the signals received on the various paths to different paths in a determinable order at a repetition rate commensurate with the pulse encoding repetition rate. The signals are then transmitted along the signal paths and are then switched back to the original order for pulse decoding. If pulse bits are lost in the second path, an interpolation may be made to provide a reasonable restoration of the signal to minimize the dropout effect. The switching of signals back to the original order virtually eliminates the possibility of having two successive dropouts of the same pulse weight in the signals to be decoded, and thus eliminates the possibility of having no standard of interpolation in the reconstructed signal.