ADPCM transcoder data interface circuit having an encoded enable signal
Patent 4782326 Issued on November 1, 1988. Estimated Expiration Date: 
October 1, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 1, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesRate converter for digital signals having a negative feedback phase lock loop Patent #: 4079371 InventorAssigneeApplicationNo. 07/103552 filed on 10/01/1987US Classes:341/76, To or from differential codes380/28PARTICULAR ALGORITHMIC FUNCTION ENCODINGExaminersPrimary: Miller, Carl S.Attorney, Agent or FirmInternational ClassH03M 7/00 (20060101)AbstractA data interface circuit for use when interfacing between two communication links communicating frames of digital data in PCM and ADPCM formats is provided. The data interface circuit provides control information for selecting one of a plurality of algorithms to control the transformation of data between a plurality of PCM and ADPCM formats. A single encoded control signal is utilized to establish frame boundaries and to select a predetermined one of the plurality of algorithms to use in converting between PCM and ADPCM data. | |
