| 摘要 |
A dual deck video cassette recorder, having first and second video decks in a common housing, both of the decks being capable of playback, and at least one of said deck means being capable of recording. A switch assembly is connected with both decks for allowing selective connections of the video and audio signals between the two decks. There is a sensor for sensing the position of the angular phase of the heads of each deck to assure they are in phase prior to initiating recording. and there is a controller for correcting the position of the heads of at least one of the decks to assure the heads of each will be in the same angular phase. There are at least two types of duplicating circuits, and the switch assembly allows selective connections of the video and audio signals between the two decks. Further, there is a sensor for sensing the quality of the signals recorded on the source tape, and an arrangement for connecting one of the duplicating circuits in dependence upon the quality of signal tested. The switch assembly allows selective connections of the video and audio signals between the two decks. A circuit places extra pseudo syncs during vertical blanking so that the syncs are located on line 13,14, there are five pulses per line, they are 2 microseconds wide, there are seven microseconds between the start of each pulse, it is on both fields, and it is -401RE, and where all of the extra pulses are below the blanking level so as not to interfere with AGC or vertical blanking signals (like VITS, Crossed Caption, and the like). A VCR having at least one deck, including a CPU for controlling the VCR; a tuner for receiving broadcast TV signals and an IR transmitter connected to and controlled by the CPU for emitting an IR signal significant of a channel to tune the cable box to the designated channel when controlled to do so by the CPU. Also there are first and second VCR deck means connected together in a common housing, a first remote control means for controlling the functions of the VCR and second remote control means for controlling the functions of the VCR, the second remote control means being incapable of changing settings placed into the VCR by the first remote control means
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