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:
Feb. 06, 2001
Filed:
Sep. 03, 1999
Norifumi Kobayashi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A variable delay circuit comprises: a variable delay part having n (≧2) cascade-connected delay parts, each of which has a delay element, a selecting circuit for selecting whether an input signal is allowed to pass through the delay element, and an OR gate for outputting an output of the selected delay element or the input signal; and a control part for selecting at least one of the plurality of delay parts on the basis of desired delay time information to transmit a control signal for operating so that the selecting circuit in the selected delay part selects a corresponding one of the delay elements, wherein a designed delay time value D,of the delay element of a number k (1≦k≦n) delay part meets the following conditions. Thus, it is possible to provide a smaller circuit scale of a variable delay circuit.