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:
Dec. 26, 1978
Filed:
Jul. 15, 1977
Gero Schollmeier, Gauting, DE;
Siemens Aktiengesellschaft, , DE;
Abstract
The invention relates to a novel switching circuit for regulating the repetition rate of clock pulses generated by a clock pulse generator. This repetition rate regulation of the clock pulses thereby controls the sampling instants at which a data signal is sampled. The best possible sampling interest is found by sampling at a first zero crossing of a distorted data pulse after its maximum value. The circuit of the invention generates a first signal which corresponds to the sign of the difference between the actual and the desired values of the data signal at the sampling instants; the circuit also generates a second signal which corresponds to the sign of the desired value of the data signal. A delay element delays the second signal by a period of the clock pulse. A multiplier circuit multiplies the first signal by the delayed second signal and produces an output control signal which regulates the repetition rate of the clock pulse generator.