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.

Date of Patent:
Jun. 30, 1998

Filed:

Feb. 24, 1997
Applicant:
Inventors:

Udi Barel, Rishon Le Zion, IL;

Micha Stern, Neve llan, Yavne, IL;

Ido Reuveny, Rishon Le Zion, IL;

Yoram Yeivin, Hod-Hasharon, IL;

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327291 ; 327299 ; 331 74 ;
Abstract

In a clock generator (100), an oscillator (30) supplies an oscillator signal (38) to a first trigger (10) and to a second trigger (20). The triggers change the oscillator signal (38) to a first and a second trigger signal (18, 28). The second trigger (20) has a larger hysteresis range than the first trigger (10), so that the first trigger signal (18) starts toggling before the second trigger signal (28) starts toggling. A detector (40) determines that the second trigger signal (28) toggles at least three times, that means that the oscillator signal (38) goes over the larger hysteresis range in two directions. The detector (40) provides a result to a control circuit (50) which derives a clock signal (98) from the first trigger signal (18).


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