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Heat Accumulators

Varying-frequency-oscillator-for-the-reduction-of-radiated-emissions-of-electronic-equipment

Transparent carrier sheet carrying transferable indicia and reference transferable guide marks and method of utilizing the same for sign-making

I claim: 1. In a transparent carrier sheet carrying a plurality of rows of underlaid indicia ...

Vacuum contactor with kickout spring

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Composite material for induction heating

OF THE INVENTION The manufacture of the induction cookware material of this invention is ...

Oven for the burn-in of integrated circuits

What is claimed: 1. An oven for the burn-in of integrated circuits, comprising: a first chamber for ...

Water laser machine tool

What is claimed is: 1. Apparatus for cutting, shaping, or machining comprising: first conduit means ...

Protective device for induction heating apparatus

It is an object of the invention to provide an improved protective device for an induction heating ...

Device for induction welding

The device according to the invention comprises an arrangement of an electrically conducting ...

Low current switching apparatus having detent structure providing tactile feedback

This invention provides low current switching apparatus having a detent for providing a tactilely ...

Process for separating mineral wool fibers from nonfibrous materials

Having regard to the foregoing disclosure, the following is claimed as the inventive and patentable ...

Contact sequencing arrangement for rotary double break switch

We claim: 1. In a multi-pole double break electric switch having a plurality of bridging contacts ...

Varying frequency oscillator for the reduction of radiated emissions of electronic equipment

Details

Inventors: Cabaniss, Frank W.; Lockwood, James M.;
Assignee: NCR Corporation (Dayton, OH)
Primary Examiner: LaRoche; Eugene R.
Assistant Examiner: Pascal; Robert J.
Attorney, Agent or Firm: Hawk, Jr.; Wilbert, Lavin; Richard W.

An oscillator circuit for outputting clock signals of varying frequency which reduces interference caused by electromagnetic radiation from clock control systems includes a resistor-capacitor network for outputting a delay signal which delays the generation of clock signals by the oscillator by a predetermined time period and modulating the delay signal with an analog signal enabling the oscillator to output clock signals of varying frequency.

DETAILED DESCRIPTION These and other objects of the invention are accomplished by providing a circuit which varies the frequency of the output of an oscillator which supplies system clock signals to a computing system.
The circuitry includes a triangular wave generator which together with a resistor produces an analog signal which continuously varies the charging rate of a capacitor whose output varies the frequency of the clock signals.

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