Abstract: To position a cue location on a video tape to a scanner so that the information stored at the cue location can read by a transducer. The video tape is transported so that when the cue location arrives at the scanner, the tape is moving at a selectable desired velocity. A synchronous cueing function is also provided for, in which the cue location is advanced at the rate of the desired velocity during to cueing operation to allow the positioning to be synchronized with other devices when the cue operation is completed.

Abstract: A digital time base corrector for correcting time base errors of the digital samples of a video signal for all the various speed modes of a reproducing apparatus. The time base corrector is configured having a small capacity memory and a large capacity memory wherein the small capacity memory is divided into a first section and a second section. The first section of the small capacity memory retimes data samples for subcarrier phase errors without losing or repeating data, while the second section of the small capacity memory retimes data for horizontal frequency error without losing or repeating data in all reproducing modes except shuttle. Further, the second section of the small capacity memory in reverse and forward shuttle retimes the data for horizontal frequency and phase errors while equalizing the data rate through the time base corrector by selectively discarding or repeating horizontal lines based on line type.

Abstract: A video recording system employs an editing device to communicate schedules of instructions to a videotape recorder control system which, in turn, communicates selected ones of the instructions from the schedules to a time-base corrector so that the time-base corrector automatically controls and adjusts video signal parameters at the output of the videotape recorder in accordance with an appropriate one of the schedules. Operation of the system includes the steps of storing schedules of instructions in the editing device, communicating the schedules of instructions to a videotape recorder control system connected to a time-base corrector, storing time lines of the instructions in the videotape recorder control system, and operating the time-base corrector to manipulate video signal information at the output of a recorder mechanism according to the time line schedules.