Data compression circuit of a digital audio tape recorder

Details Data compression circuit of a digital audio tape recorder Data compression circuit of a digital audio tape recorder

1991-08-23

1993-03-23

Shaw, Dale M.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Hearing aid

381 30, 381 34, 360 8, 360 32, 341 50, 341 95, G10L 302, G11B 500, H03M 700

Patent

active

051971011

ABSTRACT:
A data compression circuit is provided for a digital audio tape recorder for converting an analog audio signal of standard 16 bit data to compressed 12 bit data when the recorder is in four-channel or long play operation mode. The compression circuit can compress standard data to be recorded with a sampling frequency of 48 KHz and a quantization of 16 bits in long play mode resulting in a compressed data recording in which sampling frequency is 32 KHz and the quantization is 12 bits. Thus, recording the compressed data occurs about twice as fast as recording standard data. Moreover, since the overall amount of recorded data is reduced owing to 12-bit linear compression, channel expansion on the tape is provided.

REFERENCES:
patent: 4758899 (1988-07-01), Tsukiyama
patent: 4802222 (1989-01-01), Weaver
patent: 4862292 (1989-08-01), Enari
patent: 5047768 (1991-09-01), Yamaguchi

Affiliated with

Also associated with

Rating

Data compression circuit of a digital audio tape recorder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data compression circuit of a digital audio tape recorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data compression circuit of a digital audio tape recorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1357934