Boots – shoes – and leggings
Patent
1990-10-12
1991-12-24
Harkcom, Gary V.
Boots, shoes, and leggings
364723, G06F 1531, G06F 738
Patent
active
050758802
ABSTRACT:
An apparatus for the domain interpolation of digital audio signals includes a signal processor apparatus to reconstruct the digital audio signal. The signal processor apparatus includes a receiver for receiving a digital audio signal, a decoder for demodulating the signal, a central processing unit for performing a time domain interpolation on the decoded signal to produce an interpolated data signal having an increased sampling rate over the digital audio signal, and a digital-to-analog converter for converting the interpolated data signal into an analog output signal that may be transmitted to an amplifier for output through a speaker. The signal processor apparatus achieves an oversampling rate and digital to analog conversion that will allow a digital audio system to more precisely reconstruct an analog audio signal from a digital audio signal such that there will be no perceptible difference between the reconstructed digital signal and the original analog signal.
REFERENCES:
patent: 4076958 (1978-02-01), Fulghum
patent: 4270026 (1981-05-01), Shenoi et al.
patent: 4303803 (1981-12-01), Yatsuzuka
patent: 4652857 (1987-03-01), Meiksin
patent: 4815132 (1989-03-01), Minami
Ronald W. Schafer, Lawrence R. Rabiner, A Digital Signal Processing Approach to Interpolation, Proc. IEEE, vol. 61, No. 6, 1973, pp. 692-702.
Ronald E. Crochiere, Lawrence R. Rabiner, Interpolation and Decimation of Digital Signals--A Tutorial Review, Proc. IEEE, vol. 69, No. 3, pp. 300-331.
John Vanderkooy, Stanley P. Lipshitz, Resolution Below the Least Significant Bit in Digital Systems with Dither, J. Audio Eng. Soc., vol. 32, No. 3, Mar. 1984, pp. 106-112.
Tor A. Ramstad, Digital Methods for Conversion Between Arbitrary Sampling Frequencies, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-32, No. 3, Jun. 1984, pp. 577-591.
Stanley P. Lipshitz, John Vanderkooy, Digital Dither, Audio Engineering Society Preprint, presented at the 81st Audio Engineering Society Convention, Nov. 12-16, 1986.
Kresse James M.
Moses Donald W.
Moses Robert W.
Harkcom Gary V.
Nguyen Long T.
Wadia Digital Corporation
LandOfFree
Method and apparatus for time domain interpolation of digital au does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for time domain interpolation of digital au, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for time domain interpolation of digital au will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-49800