Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By pulse coincidence
Patent
1993-08-27
1995-10-17
Heyman, John S.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By pulse coincidence
327 73, 327 74, H03K 524
Patent
active
054594154
ABSTRACT:
A signal reproducing apparatus reproduces a signal recorded in a DAT by using a start ID. The signal reproducing apparatus includes an output circuit for reading out a signal from the DAT and for outputting a reproduction signal, a memory for storing signals, a controller for storing the reproduction signal from a predetermined region on the DAT by the output circuit, the predetermined region including a position identified by the start ID, a leading edge detector for detecting a position, in the memory, of a leading edge of the reproduction signal to be stored in the memory, a memory controller for reading out the reproduction signal starting from the position, in the memory, detected by the leading edge detector. A unit for detecting a leading edge of a signal includes a comparing circuit for comparing a level of a signal supplied from an external unit with a reference level, a detecting circuit for detecting a position of the leading edge of the signal based on comparison results obtained by the comparing circuit, and a controller for changing the reference level used by the comparing circuit in accordance with the signal supplied from the external unit.
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Heyman John S.
Meller Michael N.
Nu Ton My-Trang
Teac Corporation
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