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:
Jul. 10, 1990
Filed:
Jul. 24, 1987
Applicant:
Inventor:
Pierre F Haubursin, Austin, TX (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
364900 ; 307270 ; 307473 ; 36493542 ;
Abstract
Circuit and method is disclosed which prevents contention on a pulse-code modulated (PCM) bus, when different drivers are transmitting during adjacent time slots. The driver circuit switches automatically from a strong driver to a weak driver depending on whether a signal level is merely repeating or whether the level is transiting. Also the driver always employs the strong driver at the onset of transmission.