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:
Nov. 14, 1995
Filed:
Jun. 23, 1994
Mitsuo Baba, Tokyo, JP;
Yasushi Aoki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A variable delay buffer circuit composed of a cascade of variable delay buffers, which realizes a delay in response to a delay control signal without any glitches. The delay buffers each have a selector circuit for selecting one of an input signal and a delayed signal produced by delaying in time the input signal in response to a delaying information. The delay buffers each contains a first control means and an output means. The first control means controls a timing of a input of the delaying information into the selector circuit in response to an external control signal. The output means outputs the control signal to by synchronized with an output signal from the selector circuit. Preferably, the first control means contains a latching means for latching the delay information and a second control means for controlling a timing in output of the delay information from the latching means in response to the control signal.