ISDB - Receiver

Receiver

There are two types of ISDB receiver: Television and set-top box. The aspect ratio of an ISDB-receiving television set is 16:9; televisions fulfilling these specs are called Hi-Vision TV. There are three TV types: Cathode ray tube (CRT), plasma display panel (PDP) and liquid crystal display (LCD), with LCD being the most popular Hi-Vision TV on the Japanese market nowadays. The cheapest 32-inch LCD is ¥27,800 (approx. 360 US$) and 22-inch for ¥17,970 (approx. 233 US$) for retail price as of November 2011.

The LCD share as measured by JEITA in November 2004 was about 60%. While PDP sets occupy the high end market with units that are over 50 inches (1270 mm), PDP and CRT set shares are about 20% each. CRT sets are considered low end for Hi-Vision. An STB is sometimes referred to as a digital tuner.

Typical middle to high-end ISDB receivers marketed in Japan have several interfaces:

• F connectors for RF input.
• HDMI or D4 connector for HDTV a monitor in home cinema.
• Optical digital audio interface for an audio amplifier and speakers for 5.1 surround audio in a home cinema.
• IEEE 1394 (aka FireWire) interface for digital data recorders (like DVD recorders) in a home cinema.
• RCA video jack provides SDTV signal that is sampled down from the HDTV signal for analog CRT television sets or VCRs.
• RCA audio jacks provide stereo audio for analog CRT television sets or VCRs.
• S video is for VCRs or analog CRT television sets.
• 10BASE-T/100BASE-T and modular jack telephone line modem interfaces are for an internet connection.
• B-CAS card interface to de-scramble.
• IR interface jack for controlling a VHS or DVD player.