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:
May. 09, 1978
Filed:
Aug. 11, 1977
Applicant:
Inventors:
Donald G Buchanan, Bottisham, EN;
Roderick F Jones, London, EN;
Assignee:
Strathearn Audio Limited, Belfast, EI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307241 ; 179 / ; 328103 ; 330254 ;
Abstract
An electrical circuit for use in controlling the coupling between two separate channels including a first transistor for connection in a first channel, a second transistor for connection in a second channel, a first and a second electrode of each transistor being connected in a respective output signal current carrying path, first signal coupling means connected between the said two first electrodes and second signal coupling means connected between the said two second electrodes, one of the said signal coupling means being variable.