Accession Number : ADD006697

Title :   A Constant Amplitude Variable Frequency Synchronized Linear Ramp Generator.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Manifredi,Urbono

Report Date : 03 Oct 1979

Pagination or Media Count : 18

Abstract : A constant amplitude, variable frequency, synchronizied, linear ramp generator is disclosed for generating a sawtooth waveform signal, whose amplitude is independent of frequency. A capacitor is charged by a voltage controlled current source, which is responsive to a feedback control signal provided by an integrator; and subsequently discharged by a clamp, which is responsive to a trigger pulse signal, so as to establish a ramp voltage across the capacitor. The ramp voltage, which appears at the output of the linear ramp generator as the sawtooth waveform signal, in turn allows a television system to operate at various line rates. (Author)

Descriptors :   *Patent applications, *Waveform generators, Linear systems, Synchronization(Electronics)

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE