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. 04, 1987
Filed:
Jan. 16, 1984
Birney D Dayton, Nevada City, CA (US);
Richard Bannister, Grass Valley, CA (US);
The Grass Valley Group, Inc., Grass Valley, CA (US);
Abstract
A switch for selectively routing a signal to a receiving device for interrupting the transmission of said signal to said receiving device includes two latches, a differential delay circuit, and a buffer amplifier. State commands to individual switches in a routing system can be preset asynchronously by one latch and all of the switches in the system can be enabled to change states simultaneously by triggering a second latch. The switch is also of the make before break type, i.e., it turns on more rapidly than it turns off. The switch also includes programmable current sources in the buffer amplifier stage. These current sources are programmable to provide full power when the switch is conducting and to provide only standby power when the switch is nonconductive.