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:
Sep. 02, 1980
Filed:
Aug. 23, 1978
Applicant:
Inventor:
Ian W Buckner, Lea, Nr. Malmesbury, GB;
Assignee:
Plessey Handel und Investments AG., Zug, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
328165 ; 328111 ; 455303 ;
Abstract
An impulse noise detector, for use in impulse noise suppressor circuits which are used for suppressing scratch noises in disc record players, comprises a rectifier operable on an applied signal to provide a rectified signal, a smoothing circuit for smoothing the rectified signal, a pair of delay and invert circuits operable on the smoothed signal for affording a corresponding plurality of time delayed signals, and a combiner for selectively combining the time delayed signals to afford an output which is indicative of the presence, in the applied signal, of impulse noise.