Patent · US Expired

Time code generator

US4503470A · kind A · utility

14Cited by
5References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 20, 1982
Grant dateMar 5, 1985
Priority date
Expiry dateJan 20, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2220/90
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A time code generator having a time code generating circuit for generating a first time code signal in response to a vertical synchronizing signal, a memory for storing a second time code signal reproduced from a VTR, a circuit for comparing the first time code signal with the second time code signal to produce an inconformity signal, a counter for counting the inconformity signal and a circuit for loading the second time code signal to the time code generating circuit according to an output of the counter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.