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:
Apr. 11, 1978
Filed:
Aug. 13, 1976
Ernst Bunge, Hamburg, DT;
U.S. Philips Corporation, New York, NY (US);
Abstract
An arrangement for signal analysis in which the function to be examined is split into its spectral components in a filter bank. The signal values of the individual components are successively applied to a comparison device and to the input of a store. The output of the store feeds the other input of the comparison device which generates a signal whenever the instantaneous signal values of all spectral components correspond to the stored, corresponding signal values, within predetermined tolerance limits. The successful comparison of each time a pair of signal values is counted for all spectral components, and the output signal is generated only if a predetermined counter position is reached. As a result, complete correspondence is not required. An additional pulse generator can also generate pulses for given spectral components which correspond to a successful comparison. The directly successive pulses of the comparison device are counted, and in the case of a negative overall comparison this counter position is transferred to a histogram-forming device which separately counts the numbers of the various counter positions.