Patent · US Expired

Method of converting the clock rate of a digitized signal

US5262858A · kind A · utility

7Cited by

5References

18Claims

0Family size

Assignee

Deutsche ITT Industries, GmbH · DE

Inventors

William J. Butera · Ditzingen, DE
Herbert Alrutz · Glückstadt, DE

Key dates

Filing date	Nov 21, 1991
Grant date	Nov 16, 1993
Priority date	—
Expiry date	Nov 21, 2011

Classification

Technology area (CPC H)Electricity
CPC primaryH04N7/24
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

One-dimensional or multi-dimensional digitized signals are transformed into one-dimensional or multi-dimensional output signals by clock-rate conversion of subband signals. To synthesize the output signal at least one continuous subset of primary subband signals is used. The subset includes the subband signal with the lowest frequency range. During reproduction of images which are horizontally and vertically scanned and digitized, absolute and relative format changes can be implemented by the clock-rate conversion.

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