Sony Corporation

Sony Broadcast & Communications Limited

Robin L Lince

James H Wilkinson

David J Walton

Apparatus for identifying edit points in a digital audio signal recorded on a record medium in association with a video signal and a time code signal, comprises a random access memory (3) for storing a reproduced segment of the digital audio signal and the associated time code signal, a monitor (2) for displaying the image corresponding to a reproduced portion of the associated video signal, a digital-to-analog converter for converting that part of the segment of the digital audio signal corresponding to the displayed image and read from the random access memory (3) by reference to the stored time code for reproduction by a loudspeaker (4), a video screen (6) for displaying the waveform of the analog-converted audio signal with a cursor (8) which relates the waveform to the image displayed on the monitor (2), and a register (7) for recording the time code read from the random access memory (3) and corresponding to a required audio edit point at which the cursor is positioned.

Method and apparatus for identifying and selecting edit paints in

A television signal equipment assignment matrix comprises a plurality of ports respectively connected to video tape recorders and to edit controllers for the video tape recorders, passive switches for effecting connection between a selected two of the ports under control of an externally supplied control signal from an operator's control panel whereby an appropriate such control signal can cause a selected edit controller to be connected to a selected video tape recorder to enable it to be controlled by that edit controller and for commands and status reports to pass therebetween, a further switch for cyclically or randomly tapping the connections between the video tape recorders and the edit controllers to derive the commands and status reports, and a display for displaying indications in dependence on the derived commands and status reports and the physical connections made between the video tape recorders and the edit controllers.

Television signal equipment assignment matrix including passive switching

A method of processing timecode data in a recorded digital video signal comprises assigning a first timecode to a first timecode location in the signal during recording, assigning the first timecode to a second timecode location and assigning a current second timecode to the first timecode location during a first editing step, and in subsequent editing steps sequentially changing the timecode locations of the timecodes so that the current timecode is assigned to the first timecode location and the previous timecodes are shifted sequentially through the other timecode locations.

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Basingstoke, United Kingdom

Robin L Lince