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.
Patent No.:
Date of Patent:
Jun. 01, 1993
Filed:
Mar. 02, 1992
Kazuyoshi Miyamoto, Kanagawa, JP;
Takashi Asaida, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Digital color television camera apparatus including an encoder for selectively producing either a digital component video signal or a digital composite video signal in accordance with first or second television standards (e.g. NTSC or PAL) by encoding digital primary color image signals in a first mode to produce digital component video signals and in a second mode to produce digital composite video signals. The encoder includes a matrix for producing digital color difference signals at a clock rate equal to the digital sampling clock rate 2f.sub.s and a down sampler for downsampling the digital color difference signals to reduce the clock rate. A digital low pass filter limits the frequency band of a down-sampled color difference signal by providing predetermined selected attenuation at preestablished frequencies of the down-sampled digital color difference signal. The encoder also includes a level setter for establishing predetermined quantizing values to represent respective reference signal levels of the digital component video signal when the encoder operates in its first mode, and for establishing different predetermined quantizing values to represent reference levels of the digital composite video signal when the encoder operates in its second mode.