Abstract: Identifying data loss in a transmission system includes shifting one of a received waveform and a transmitted waveform, determining differences between the transmitted and received waveforms at various shift points, and identifying a smallest of the differences between the transmitted and received waveforms. A plot of the differences relative to the shift points may be generated. The smallest of the differences may be a low vertex point on the plot.

Abstract: The present invention processes cable modem functions on a host computer. The cable modem receives hardware specific modem functions and transfers these functions to the host computer. An abstraction layer in the host computer receives the functions and converts the functions to/from hardware specific functions. The abstraction layer may be a DOCSIS abstraction layer. A firmware emulator (firmulator) then receives and processes the modem functions. The firmware emulator includes a plurality of state machines and networking protocol agents.

Abstract: The present disclosure describes a method comprising establishing a connection between a software communication channel and a media server, wherein the software communication channel is presented to the server as a media stream; transmitting to the media server a call object including a media handle; attaching a media application to the media handle; and establishing a connection between the media application and the software communication channel.

Abstract: An application specific signal processor (ASSP) performs vectorized and nonvectorized operations. Nonvectorized operations may be performed using a saturated multiplication and accumulation operation. The ASSP includes a serial interface, a buffer memory, a core processor for performing digital signal processing which includes a reduced instruction set computer (RISC) processor and four signal processing units. The four signal processing units execute the digital signal processing algorithms in parallel including the execution of the saturated multiplication and accumulation operation. The ASSP is utilized in telecommunication interface devices such as a gateway. The ASSP is well suited to handling voice and data compression/decompression in telecommunication systems where a packetized network is used to transceive packetized data and voice.

Abstract: Disclosed is a method and apparatus for a unified RISC/DSP pipeline controller to control the execution of both reduced instruction set computer (RISC) control instructions and digital signal processing (DSP) instructions for a signal processor. The unified RISC/DSP pipeline controller is coupled to a program memory, a RISC control unit, and at least one signal processing unit. The program memory stores both DSP and RISC control instructions and the RISC control-unit controls the flow of operands and results between the signal processing unit and a data memory that stores data. The signal processing unit executes the DSP instruction. The unified RISC/DSP pipeline controller generates DSP control signals to control the execution of the DSP instruction by the signal processing unit and RISC control signals to control the execution of the RISC control instruction by the RISC control unit.