| 摘要 |
PURPOSE:To reduce the circuit scale of the multiplex data decoder employing plural channels. CONSTITUTION:A data changeover section 14 consists of a data output section of each channel and a changeover control section. A basic operation section (A) 15 consists of a synchronizing signal detection section, an operating timing generating section, a FAS extraction section, a BAS extract section, a CRC arithmetic operation section, a, decoder section and an encode section or the like, and basic operation sections (B) 17-20 are made up of the same sections as those of the basic operation section (A) 15 except without the BAS extract section. A control section 21 sends a changeover command to the data changeover section 14 and data of the 1st channel are sent to the basic operation section (A) 15 of the 1st channel. Moreover, the data of 2nd-6th channels are sent to the basic operation sections 16-20. The data separated from each channel are separated from individual data 7-12 by a data separation section 22. The BAS extract section is not provided to the basic operation sections (B) 17-20. |
