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Based on embedded DSP class media codec encoder-decoder - 51rd Chinese electronic net
Monday, June 29th, 2009 at 15:08 | No commentsCategories: DSPShort Content: Programmable DSP may use in realizing each kind of existing codec encoder-decoder and the future arranges the decoding standard. The present tendency will be issues every two years new will arrange the decoding standard, each new standard will meet the need more DSP cycles. Therefore, the choice has the compatible development blueprint DSP platform (for example ZSP) to be important, like this through system upgrade, but the redesign then satisfies future system request. Multimedia will designate all elements (including ... -
Pronunciation codec encoder-decoder realizes - en.51rd.net based on FPGA 32Kbit/s the CVSD
Sunday, September 21st, 2008 at 13:10 | No commentsCategories: EDA/PLDShort Content: 64 Kbit/s A laws or Mu the law logarithm pressure expands the PCM code obtained the widespread application in the large capacity fiber optic communications system and the digital microwave system, but because takes the big transport tape to have the complex framing structure affable, the PCM code does not suit the wireless phonetic system's application. The continuous variable slope increase (Continuously Variable Slope Delta, CVSD) modulates by it low application difficulty, the cost and the code rate, the ... -
One kind based on CPLD Manchester codec encoder-decoder design
Friday, September 19th, 2008 at 06:10 | No commentsCategories: EDA/PLDShort Content: Introduction Although the computer correspondence's method and the method are many and varied, but must depend upon the data communication technology. The data communication is adds to the data signal on the data transmission channel to carry on the transmission, and restores correctly in the receive roll-call primitive transmission's data. Because the computer produces is the digital signal generally, therefore between computer's correspondence in fact belongs to the data communication. Manchester code codec encoder-decoder is in the 1553B bus interface ...
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