IEEE Journal of Solid-State Circuits · 1976 · 62 citations · 4 references
EngineeringCommunicationComputer EngineeringDigital CommunicationHardware Description LanguagesSystem-on-chip DesignCmos Circuit DesignCoding TheoryCommunication SystemsDigital Signal ProcessingError-correcting CodesModulationCodingEncoder DesignPrototype DetailingPulse Code ModulationPulse ModulationSpeech CodingTelephone SystemsVoice Communication Systems
A technique for pulse code modulation (PCM) encoding according to the 15-segment approximation to the μ-255 nonlinear encoding law is described. The technique makes possible the realization of a one-channel encoder together with the associated sample/hold function as a single NMOS integrated circuit. The requirements imposed on the individual components for satisfactory system performance are investigated, and it is shown that a performance can be achieved which is comparable with that required in toll quality PCM telephone transmission. Experimental results from a partially integrated prototype are presented.
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