Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2006-03-21
2006-03-21
Williams, Howard (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C360S001000, C360S039000
Reexamination Certificate
active
07015848
ABSTRACT:
A recording/reproducing method and an apparatus for carrying out the same are disclosed wherein a cesium atomic clock, a hydrogen atomic clock or a mercury atomic clock (1) is used as a digital audio reference oscillator so as to minimize jitter which may occur during a recording process performed after analog-to-digital conversion or digital-to-digital conversion, or during digital-to-analog conversion. With the jitter thus minimized, acoustic characteristics including jitter noise and sound resolution are greatly improved, and a sound can be reproduced with high sound quality and high fidelity that are comparable to those achieved in an analog audio system.
REFERENCES:
patent: 3629582 (1971-12-01), Koehler et al.
patent: 4899117 (1990-02-01), Vig
patent: 5155695 (1992-10-01), Stein
patent: 5296884 (1994-03-01), Honda et al.
patent: 54-109413 (1979-08-01), None
patent: 90-73728 (1997-03-01), None
patent: 2000-183430 (2000-06-01), None
patent: 2001-217708 (2001-08-01), None
patent: 2001217708 (2001-08-01), None
Ohashi Masamichi
Tsuchiya Masamichi
Coleman Henry D.
Nippon Sogo Seisaku Co. Ltd.
Sapone William J.
Sudol R. Neil
Williams Howard
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