Patent · US Expired

Recording and demodulation devices for electronic still camera

US5153740A · kind A · utility

6Cited by
6References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 21, 1992
Grant dateOct 6, 1992
Priority date
Expiry dateJan 21, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2201/3277
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A device for use in an apparatus for demodulating the signal reproduced from a recording medium in a still video camera or the like in which the phase of the demodulated signal is always accurately detected. Horizontal periods in which the respective line-sequential color difference signals B-Y and R-Y are present are discriminated, and a timer is operated during periods when the B-Y signal is present. Data is read from the reproduced modulated signal at predetermined points within a half cycle of the waveform of the signal as designated by outputs of the timer.

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