The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 22, 2004

Filed:

Apr. 01, 1994
Applicant:
Inventors:

Terence Ralph Hurley, Newbury, GB;

Jonathan James Stone, Reading, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/76 ;
U.S. Cl.
CPC ...
H04N 5/76 ;
Abstract

An image data recording and transmission system is described in which a data compressor decorrelates input image data into sub band component data, a data recorder stores the sub band data, a data decompressor decompresses data read from the data recorder and a transmission signal generator produces a bandwidth limited transmission signal from the decompressed data. The combined action of a data sequencer , a quantizer and an entropy encoder within the data compressor act to remove from the data stream that information corresponding to frequencies not transmittable with the bandwidth limited transmission signal (e.g. PAL or NTSC) subsequently produced by a transmission signal generator . Accordingly, the data recorder need not use storage capacity recording data which cannot be used by the transmission signal generator.


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