Title:
DIGITAL TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/1988/004119
Kind Code:
A1
Abstract:
Signal transmission system equipped with a transmitter (11) and a receiver (12). The transmitter (11) has first clock extract means (13, 14) which detects synchronizing signals contained in a first DAI format signal from the receiver (12), and which generates first clock signals of a predetermined frequency whose phase is locked to the synchronizing signals; a data read means (4) which reads the data from a recording medium on the basis of the first clock signals; and a first encode means (5) which encodes the data from the data read means (4) into a second DAI format signal on the basis of the first clock signals. The receiver (12) has second clock extract means (6, 7) which detects synchronizing signals contained in the second DAI format signal and which generates second clock signals of a predetermined frequency whose phase is locked to the synchronizing signals; a decode means (8) which decodes the data from the second DAI format signal on the basis of the second clock signals; an oscillation means (3) which generates master clocks; a D/A conversion means (9) which converts the demodulated data from the digital signals into analog signals on the basis of the master clocks; and a second encode means (15) which encodes the master clocks to obtain the first DAI format signals. The system is operated in synchronism by the master clocks, whereby the digital/analog conversion is carried out at a timing of clock signals not containing jitter.
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Inventors:
KANAI TAKASHI (JP)
INAYAMA MINORU (JP)
INAYAMA MINORU (JP)
Application Number:
PCT/JP1987/000924
Publication Date:
June 02, 1988
Filing Date:
November 27, 1987
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04B14/04; G11B20/10; G11B20/12; G11B20/14; H04L7/00; H04L7/02; H04L7/033; (IPC1-7): H04L7/00; G11B20/10; H04L7/02
Foreign References:
| JPH05527743B | ||||
| JPH05853807B | ||||
| JPH05342363B | ||||
| JPH05776956A |
Other References:
See also references of EP 0293489A1
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