DIRECT DIGITAL ENCODING AND RADIO FREQUENCY MODULATION FOR BROADCAST TELEVISION APPLICATION
摘要
<p>A digital audio encoder, digital video conditioner, and a digital modulator are described for producing a television broadcast signal at a desired channel frequency range. Left and right audio channel signals are digitized and encoded according to a stereo standard and then combined to form a stereo audio signal. A second audio programming channel signal may be included. A video input can be digitized and conditioned to form a digital video channel. The stereo audio signal can be placed directly at a desired channel frequency by frequency modulation without the need for using an intermediate frequency. The digital video channel can be placed at a desired frequency by amplitude modulation. The digital and audio channels can be digitally combined to create a television transmission signal at a desired frequency and according to a desired standard.</p>
申请公布号
WO2006034142(A2)
申请公布日期
2006.03.30
申请号
WO2005US33391
申请日期
2005.09.16
申请人
THAT CORPORATION;EASLEY, MATTHEW;BARNHILL, MATTHEW;KAY, W., KEVIN