Marvellworld Trade Ltd.

Marvell Asia Pte., Ltd.

Marvell International Limited

Dehuan Meng

Fei Wu

Biing Long Shu

Hugh Walsh

Donald Robert Pannell

Gongyu Zhou

Donald Pannel

According to an embodiment of the present disclosure, a virtual controller area network system includes first, second third controller area network (CAN) buses. A first CAN controller is coupled to the first and second CAN buses and is configured to route messages to and from the first and second CAN buses. A second CAN controller is coupled to the third CAN bus and is configured to route messages to and from the third CAN bus. A network bridging system is configured to route messages over a local area network between the first CAN controller and the second CAN controller.

Virtual controller area network

Embodiments described herein provide a method for an error logging mechanism operated with controller area network (CAN) buses within an Ethernet network. A first interrupt request indicative of a first error condition that occurs at the first CAN bus is received at an Ethernet bridge and from a first CAN controller connected to a first CAN bus. In response to the first interrupt request, the first interrupt request is serviced by retrieving, from a first error register at the first CAN controller, information relating to the first error condition. The information relating to the first error condition is encapsulated in a first frame in compliance with a layer 2 transport protocol for time-sensitive applications. The encapsulated first frame is then sent, via an Ethernet switch, to an error logging device installed at a location remote to the first CAN bus.

Systems and methods for an error logging mechanism at controller area network buses

Systems, methods, and apparatuses are provided herein for time-stamping a Controller Area Network ('CAN') bus message. Control circuitry (e.g., of a network bridge) may receive a CAN message, and may, in response to receiving the CAN message, generate a time stamp. The control circuitry may add an entry to a lookup table stored in memory, wherein the entry correlates a CAN message Identifier ('ID') corresponding to the CAN message with the time stamp. The control circuitry may encapsulate the CAN message and the time stamp, and may transmit the CAN message according to the time stamp.

Systems and methods for implementing a time-stamped controller area network (CAN) bus message

Systems and methods are provided for routing a message in a network. A bit length of an identifier field of a received message is identified. A lookup table is selected based on the bit length of the identifier field. The identifier field is used as a reference for the lookup table to identify a bus for the message, and the message is forwarded to the bus.

Control message routing structure for a controller area network

Aspects of the disclosure include a device for processing media samples. The device includes a frame decoder, a buffer, and a placement manager. The frame decoder is configured to receive a data frame from a source outside the device, extract from the data frame a first sample, and determine a first designated playback time of the first sample. The buffer has memory portions, and addresses of the memory portions are associated with a reference time and time increments of a local sampling period of the device. The placement manager is configured to store the first sample in a first memory portion of the buffer having a first address that is associated with a first time increment that most closely corresponds to the first designated playback time of the first sample.

Device and method for processing media samples

Aspects of the disclosure provide a method for scattering audio streams. The method can include receiving a set of audio data transmission signals indicating a format of audio data, determining a set of format parameters corresponding to the format of the audio data based on the set of audio data transmission signals, determining whether the set of format parameters are different from a set of previously determined format parameters, searching a lookup table for a build entry identified by the set of format parameters when the set of format parameters are different from the set of previously determined format parameters, and generating a media packet carrying audio samples of the audio data according to the build entry.

Scattering audio streams

Systems, methods, and apparatuses are described herein for implementing a switched Controller Area Network ('CAN'). In some embodiments, control circuitry of a bridge may receive a CAN message. The control circuitry may identify a first plurality of nodes to which the CAN message is addressed by comparing a virtual CAN bus identifier of the CAN message to entries of a virtual CAN bus lookup table, and may identify a second plurality of nodes to which the CAN message is addressed by comparing a message identifier ('ID') of the CAN message to entries of a message ID lookup table. The control circuitry may perform a logical AND operation between the first plurality of nodes and the second plurality of nodes, and may transmit the CAN message to a node that satisfies the logical AND operation.

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Beijing, China

Dehuan Meng