codec

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codec

A device that uses hardware and/or software to translate analogue transmissions into digital transmissions and compressed data from 10- to 100-fold. Codecs were used to transmit information in telemedicine, but are now of historic interest.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

codec

Coder/decoder Telemedicine A device that uses hardware and/or software to translate analog transmissions into digital transmissions and compresses data from 10- to 100-fold; codecs are used to transmit information in telemedicine. See Asynchronous transfer mode switching, T-1, Telemedicine.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Chuang, "Reduction of peak-to average power ratio of OFDM signals with companding transform," Electron.
To restore the original coefficient z at the receiving side, the values of TL, TR, the compressed location map, the companding error e, and the threshold matrix T, called overhead data, should be embedded into the cover image along with the pure payload (namely the watermarking data).
Figures 6a through 6c compare the BW efficiency performance of the DWT & DCT systems with and without companding to that of with exponential transform.
The rest of the paper is organized as follows: Section II describes the companding system with embedded G.711 quantizer.
By using the proposed companding transform in Section 3, the MCM signals are companded before they are converted into analog waveforms and amplified by the high power amplifier (HPA).
Recently, an iterative companding transform and filtering (ICTF) scheme [17] has been proposed in which linear and piecewise linear transforms have been selected due to their low implementation complexity.
Tsividis, "Externally linear, time-invariant systems and their application to companding signal processors", IEEE Trans.
In this paper, a new adaptive companding scheme is proposed along with its design methodology.
Tihung, "Reduction of peak-to-average power ratio of OFDM systems using a companding technique," IEEE Transaction on Broadcasting, vol.
We choose to use the logarithmic companding quantizer with u compression law within DPCM system, due to its robustness.
The problem that generaly occurs in designing quantizers, including [mu]-law companding quantizers, is how to provide the simple manner of determining the support region threshold of the quntizer to minimize distortion introduced in the quantization process.
Samuelsson, "Multidimensional Companding Quantization of the Gaussian Source", IEEE Trans.

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