Apparatus for reproducing PCM magnetic recording tape
US4364096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1980 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Jul 14, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10527
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for reproducing voice signals from a PCM magnetic recording tape which is equipped with a discontinue waveform calibrator which comprises a control signal generator for detecting an edited part from PCM signal rows reproduced from the magnetic tape and for transmitting a control signal; a first memorizing means for memorizing at least one word part of the PCM signal rows which are sequentially imputted; a second memorizing means for memorizing specific words of the PCM signal rows overflowed from the first memorizing means; a third memorizing means for memorizing at least one word part of the PCM signal rows overflowed from the memorizing means; a first weighing means for multiplying a gradually increasing weight from X0 to X1 to the memorized data of the first memorizing means upon receiving the control signal to output it; a second weighing means for multiplying a gradually decreasing weight from X1 to X0 to the memorized data of the third memorizing means upon receiving the control signal; an adder for summing gradually output signals of the first and second weighing means; and a switch for switching to receive as an input the PCM signal overflowed from the third me…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.