System for processing and recording digital color television sig

Details System for processing and recording digital color television sig System for processing and recording digital color television sig

1994-04-01

1996-04-16

Tran, Thai Q.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358330, 348552, H04N 979, H04N 700, H04N 1100

Patent

active

055088120

ABSTRACT:
A system for processing and recording digitized component television signals onto analog video tape includes a digital color transformation matrix for generating a digital luminance signal, a first digital chrominance signal, and a second digital chrominance signal. The signals are then sample rate reduced, interleaved, and stored in a storage subsystem, which may include a disk array. The storage subsystem allows a constant rate, uninterrupted data stream to be produced. To record the signals onto video tape, the signal data is read from the storage subsystem and separated. A series of digital signal processing elements, coupled to the digital luminance signal (read from the storage subsystem), are used to generate a digital filtered and frequency modulated luminance signal. A second series of digital signal processing elements, coupled to the first and second digital chrominance signals (also read from the storage subsystem), are used to generate a digital low pass filtered and amplitude modulated composite chrominance signal. These signals are combined, then converted into an analog composite recording signal compatible with a predetermined VCR standard. The system may also include a controlled video tape mechanism which allows frame accurate recording so that a single, long program may be recorded as a series of concatenated shorter length clips.

REFERENCES:
patent: 4816898 (1989-03-01), Farley et al.
patent: 4884151 (1989-11-01), Ohtsn et al.
patent: 5062004 (1991-10-01), Winterer et al.
patent: 5119074 (1992-06-01), Greaves et al.
patent: 5140408 (1992-08-01), Kaite et al.

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