Redback Networks Inc.

Divio, Inc.

Sophie H Essen

Ren-Yuh Wang

A method and apparatus for the transmission of data through multiple clock domains using synchronous and asynchronous FIFOs are described. In an embodiment, a method includes receiving data at a first data transfer rate. Additionally, the method includes storing the data at the first data transfer rate in a synchronous storage device having a first storage area. The data at the first data transfer rate stored in the synchronous storage device is processed. The processing includes removing the data from the synchronous storage device. The processing also includes storing the data at the first data transfer rate in an asynchronous storage device having a second storage area. Additionally, the processing includes transmitting the data out from the asynchronous storage device at a second data transfer rate, wherein the storage area of the synchronous storage device is larger than the second storage area of the asynchronous storage device.

Method and apparatus for changing the data rate of a data signal

New and improved methods and apparatus for code packing in a digital video system. Among others, a method of transferring a data block to a storage device is disclosed. The storage device can include a plurality of compartments. The method includes receiving a plurality of length values. Each length value can correspond to a data block from a plurality of data blocks. The method further includes filling a first compartment of the storage device with a portion of data from a first data block, searching the length values to identify one of the plurality of data blocks having a length value less than a threshold value, and filling a second compartment with a remaining portion of the data from the first data block. In one embodiment, the second compartment can correspond to the identified data block.

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Cupertino, CA, United States of America

Sophie H Essen