| 摘要 |
An exciter (10) is located along an information stream path of a transmission system (12). The exciter (10) supplies an information signal as a drive to an amplifying arrangement (14). A coder (28), programmable to be operative in any of several I/O formats, outputs the information signal that conveys data in a desired code arrangement. A filter (30), programmable to be operative in any of several I/O formats, confines the information signal energy to a predetermined channel bandwidth. A modulator (32), programmable to be operative in any of several I/O formats, modulating the information signal. A corrector/equalizer (34), programmable to be operative in any of several I/O formats, pre-corrects the modulated signal for errors induced in the transmission system. A controller (38) provides program control of the coder (28), the filter (30), the modulator (32), and the corrector/equalizer (34). Thus, the exciter (10) is configurable to handle several formats, such as MPEG2, DVIDEO, and AES3.
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