Business News Status of digital hdtv and development

appliance industry in the United States first proposed, after eight years of technology development, the Federal Commission (FCC) finally formalized in 1995, HDTV terrestrial broadcasting and product specifications. In 1998, the United States has formally launched digital high-definition programming to the 2006 analog TV will be completely eliminated, replaced by a digital high definition television. Europe, Australia also has the year before last,Dortmund jerseys, last year, begin broadcasting digital television programs. BR High-definition digital television (HDTV) is first proposed by the United States,Juventus jerseys, after eight years of technology development, the Federal Commission (FCC) has finally formalized in 1995, HDTV terrestrial broadcasting and product specifications. In 1998,Ghana soccer jerseys, the United States has formally launched digital high-definition programming to the 2006 analog TV will be completely eliminated, replaced by a digital high definition television. Europe,Werder Bremen jerseys, Australia also has the year before last, last year, begin broadcasting digital television programs. BR Existing digital TV and analog TV the biggest difference is that digital TV picture clear and stable image quality in the coverage area will not be the signal transmission distance and changes in the signal transmission throughout the process both outside noise will not affect the television image. The analog TV signal transmission distance will be farther along with the image quality worse. In recent years, technology companies began to develop stronger video processing circuit in digital signal processing technology to improve the performance of analog circuits. For example: the analog TV line frequency, field frequency increased, and the times to achieve progressive scan field (100HZ) scan,Inter Milan jerseys, to eliminate flicker and improve picture quality. However, this digital television with the previously mentioned principle at work is completely different, the effect is much worse than digital television. For example: high-definition television display format 1920 �� 1080i image pixel density of up to 135 movie film's picture quality. Digital TV also has a variety of different levels of image resolution display format. China's high-definition display format for the 1920 �� 1080i/50HZ interlaced scanning, while the U.S. high-definition television display format 1920 �� 1080i/60Hz interlaced, 1280 �� 720P/60Hz progressive scan, standard-definition display format with 720 �� 480P / 60Hz progressive scan, these are not analog television. BR Digital TV is filming, editing, production, broadcasting, transmission, reception and receiving broadcast television signals such as the whole process of use of digital technology. Digital high definition television is digital television (DTV) standard in the most advanced one, referred to as HDTV (HighDefinisionTV). BR Digital TV with high-quality sound system, analog TV reception with high and low adjustment, left and right channel balance, surround sound, such as loudness control switch functions. NICAM broadcast in a region, by remote control, set to automatically NICAM mode, the cursor can automatically identify whether the broadcast TV NICAM. BR Digital TV (DigitalTV) including digital HDTV, digital SDTV and digital LDTV of three. Is the difference between the three main image quality and transmission channel bandwidth occupied different. View from the visual effects, digital BR HDTV (1000 lines or more) for high-definition television (HighDefinition BR Television) short, image quality can be at or near the level of 35mm wide-screen film; SDTV (500-600 lines) or standard definition TV, mainly corresponding to the resolution of existing television magnitude, its image the level of quality as the studio; LDTV (200-300 line) or normal-definition television, mainly corresponding to the resolution of the current magnitude of VCD. Because digital television is the future trend, we now provide HDTV and SDTV, LDTV If no special instructions are to all-digital system. BR China was October 1, 1999 50th Daqing parade carried out high-definition digital TV test broadcast. I am an expert from , usually analyzes all kind of industries situation, such as , .