Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Compressed data recording and/or reproducing apparatus and signal processing method










Image Number 8 for United States Patent #5438643.

Apparatus for recording an information signal as bit-compressed digital data. The apparatus comprises a bit compressor and a recording system. The bit compressor receives the information signal as digital data. The digital data include bits, and the bits include redundant bits. The bit compressor compresses the digital data by removing only the redundant bits from the digital data to generate the bit-compressed digital data at a variable bit rate. The redundant bits are bits that result in a quantizing noise level lower than an allowed noise level at which the quantizing noise is imperceptible to a human auditory sense. The allowable noise level is determined by a masking threshold and a minimum audibility limit. The recording system receives the bit-compressed digital data from the bit compressor and records the bit-compressed data on a recording medium.








 
 
  Recently Added Patents
Portable computer display structures
Selective thermal treatment of medical instrument portions with thermal treatment system instrument holder
Information processing apparatus and display control method
Retrievable outgoing audio messaging
(4932
Apparatus for merging spatial audio streams
Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
  Randomly Featured Patents
Purified flavonoid and diterpene 5.alpha.-reductase inhibitors from thuja orientalis for androgen-related diseases
Vehicle-wheel front face
Apparatus for identifying plants
Automatic light switch on a self defense device
Overtone crystal oscillator automatic calibration system
Apparatus for fitting and drilling bowling balls
Axial lead electrical component feeder
Electroluminescent materials
Neutral macrolide antibiotics from Streptomyces
Pet food dish