Abstract: A system for using a plurality of processors to support a media conference includes a mixing processor and a first media transformation processor coupled to the mixing processor. The mixing processor mixes input media information associated with two or more first participants to generate output media information for communication to a second participant. The first media transformation processor receives the output media information from the mixing processor, encodes the output media information to generate an output data stream, and communicates the output data stream to the second participant's end-user device.

Abstract: A system for maintaining a plurality of media conferences includes digital signal processors (DSPs) and a system resource management (SRM) module coupled to the DSPs. Each DSP receives input data packets from conference participants, processes the input data packets to generate output data packets, and communicates the output data packets to the conference participants. The SRM module may migrate a media conference from a first DSP to a second DSP.

Abstract: A two-wire interface having a receive wire and a transmit wire is coupled for communication with a single-wire serial interface to provide for relatively high-speed data transmission. In one aspect, controllable buffers are coupled to the transmit and receive lines of the two-wire serial interface. The outputs from the two buffers are coupled to a commnon line which is also coupled to the single line of the single-wire interface. The transmit buffer and/or read buffer and/or transmission from the single-wire interface are controlled, e.g., such as using control signals provided by software, such that the transmit buffer from the two-wire interface is enabled only when transmission from the single-wire interface is disabled and transmission from the single-wire interface is permitted only when the transmit buffer of the two-wire interface is disabled.

Abstract: A device for supporting a plurality of media conferences includes digital signal processors (DSPs) and a system resource management (SRM) module coupled to the DSPs. Each DSP receives input data packets from conference participants and processes the input data packets to generate output data packets. Each DSP determines whether the media conference is set to an active mode and communicates the output data packets to the conference participants in response to determining that the media conference is set to the active mode. The SRM module allocates a media conference to a first DSP and a second DSP and sets the media conference to the active mode in the first DSP and a stand-by mode in the second DSP. The first DSP communicates output data packets associated with the media conference in response to the SRM module setting the media conference to the active mode in the first DSP.

Abstract: A reset pin of a non-volatile read/write memory, which stores boot code, is provided with a reset signal in response to a system reset output by a watchdog timer or other external circuitry. The reset signal causes the non-volatile read/write memory to be placed into read mode. Accordingly, even when a system reset occurs while the non-volatile read/write memory is in write mode, a hang state can be avoided since the memory will be reset to read mode before attempting to read boot code for a reboot operation.