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:
Oct. 21, 1986
Filed:
Jun. 29, 1982
Applicant:
Inventor:
Yoshiaki Matsuura, Tokyo, JP;
Assignee:
Kabushiki Kaisha Daini Seikosha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331160 ; 331186 ; 3311 / ; 368159 ;
Abstract
A reference pulse generator comprises a quartz crystal oscillator, a frequency divider connected to the oscillator for frequency dividing the oscillator output, and a constant current generator connected in series both with the oscillator and the frequency divider to control the current applied to the oscillator from a power source. The constant current generator comprises a current limiting element, such as a MOSFET, which is controlled by a reference voltage produced by a reference voltage generator.