公开(公告)号：EP0917374A3

公开(公告)日：2002-01-30

申请号：EP98309301.4

申请日：1998-11-13

Applicant: STMicroelectronics, Inc.

Inventor： Balakrishnan, Jeyendran ,  Owen, Jefferson E.

IPC: H04N7/50

CPC classification number: G06F12/0207 ,  H04N19/102 ,  H04N19/16 ,  H04N19/172 ,  H04N19/423 ,  H04N19/433 ,  H04N19/61

Abstract: A method of storing a picture in a memory such that bandwidth can be reduced when retrieving an array portion of the picture from the memory, and a memory architecture are disclosed. The memory is subdivided into a plurality of words for storing a picture having rows and columns. The picture is partitioned into two or more stripes each having a predetermined number of columns. The number of bytes in one row of one stripe is equal to the number of bytes in one word, for storing the data in one row of a stripe in one word.

公开(公告)号：EP0917374A2

公开(公告)日：1999-05-19

申请号：EP98309301.4

申请日：1998-11-13

Applicant: STMicroelectronics, Inc.

Inventor： Balakrishnan, Jeyendran ,  Owen, Jefferson E.

IPC: H04N7/50

CPC classification number: G06F12/0207 ,  H04N19/102 ,  H04N19/16 ,  H04N19/172 ,  H04N19/423 ,  H04N19/433 ,  H04N19/61

Abstract: A method of storing a picture in a memory such that bandwidth can be reduced when retrieving an array portion of the picture from the memory, and a memory architecture are disclosed. The memory is subdivided into a plurality of words for storing a picture having rows and columns. The picture is partitioned into two or more stripes each having a predetermined number of columns. The number of bytes in one row of one stripe is equal to the number of bytes in one word, for storing the data in one row of a stripe in one word.

Abstract translation: 一种将图像存储在存储器中的方法，使得可以在从存储器检索图像的阵列部分时减少带宽，并且公开了存储器架构。 存储器被细分为用于存储具有行和列的图片的多个单词。 将图像分割成两条或多条，每条具有预定数量的列。 一个条带的一行中的字节数等于一个字中的字节数，用于以一个字存储数据的一行。

公开(公告)号：EP1689195A2

公开(公告)日：2006-08-09

申请号：EP06075840.6

申请日：1998-11-13

Applicant: STMicroelectronics, Inc.

Inventor： Balakrishnan, Jeyendran ,  Owen, Jefferson E.

IPC: H04N7/50

CPC classification number: G06F12/0207 ,  H04N19/102 ,  H04N19/16 ,  H04N19/172 ,  H04N19/423 ,  H04N19/433 ,  H04N19/61

Abstract: A method of storing a picture in a memory such that bandwidth can be reduced when retrieving an array portion of the picture from the memory, and a memory architecture are disclosed. The memory is subdivided into a plurality of words for storing a picture having rows and columns. The picture is partitioned into two or more stripes each having a predetermined number of columns. The number of bytes in one row of one stripe is equal to the number of bytes in one word, for storing the data in one row of a stripe in one word.

Abstract translation: 一种将图片存储在存储器中的方法，以便当从存储器检索图片的阵列部分时可以减少带宽，并且公开了一种存储器架构。 存储器被细分成多个词用于存储具有行和列的图片。 该图片被分成两个或更多个条，每个条具有预定数量的列。 一个条带的一行中的字节数等于一个字中的字节数，用于将数据存储在一个字中的条带的一行中。

公开(公告)号：EP0847204A3

公开(公告)日：2000-03-01

申请号：EP97309487.3

申请日：1997-11-25

Applicant: STMicroelectronics, Inc.

Inventor： Diaz, Raul Zegers ,  Balakrishnan, Jeyendran ,  Owen, Jefferson Eugene

IPC: H04N7/50

CPC classification number: H04N19/42 ,  H04N19/61

Abstract: Circuits and methods for subdividing a decoder into functional blocks that can be accessed separately. The decoder includes a decoder module having a parser, a block decoder and a motion compensation engine, which can all be further subdivided into functional blocks. The functional blocks can be bypassed in decompressing frames where the blocks are not necessary, or when the compression algorithm does not require the functional block, increasing the speed of the decoder. The functional blocks can also be reused for decompression or compression based on different standards, or for different operation in the decoder, such as decompression and compression. The decoder can be coupled to a processor and some of the functional block performed in the decoder's hardware and some are performed in the processor. In one embodiment of the invention and the processor determines which block are to be by-passed completely and which block are to be performed in software based on the decompression protocol to which the compressed frame is encoded to comply to, the capacity and speed of the processor, and the available memory. In another embodiment multiplexers can be added to the decoder to connect functional blocks so they can be by-passed or reused based on preprogramming of the multiplexers based on the decompression protocol to which the compressed frame is encoded to comply to, the capacity and speed of the processor, and the available memory.

Abstract translation: 用于将解码器细分为可单独访问的功能块的电路和方法。 解码器包括具有语法分析器，块解码器和运动补偿引擎的解码器模块，其可以进一步细分为功能块。 可以在对块不需要的帧进行解压缩时，或者当压缩算法不需要功能块时，可以绕过功能块，从而提高解码器的速度。 这些功能块还可以用于基于不同标准的解压缩或压缩，或解码器中的不同操作，例如解压缩和压缩。 解码器可以耦合到处理器，并且一些功能块在解码器的硬件中执行并且一些在处理器中执行。 在本发明的一个实施例中，处理器基于压缩帧被编码为符合的解压缩协议来确定哪个块将被完全旁路以及哪个块将在软件中被执行，因此，处理器的容量和速度 处理器和可用内存。 在另一个实施例中，可以将多路复用器添加到解码器以连接功能块，使得它们可以基于对多路复用器的预编程被绕过或重新使用，这基于压缩帧被编码为符合的解压缩协议， 处理器和可用内存。

公开(公告)号：EP1689195A3

公开(公告)日：2006-09-27

申请号：EP06075840.6

申请日：1998-11-13

Applicant: STMicroelectronics, Inc.

Inventor： Balakrishnan, Jeyendran ,  Owen, Jefferson E.

IPC: H04N7/26 ,  H04N7/50 ,  G06F12/02 ,  G06F13/28

CPC classification number: G06F12/0207 ,  H04N19/102 ,  H04N19/16 ,  H04N19/172 ,  H04N19/423 ,  H04N19/433 ,  H04N19/61

Abstract: A method of storing a picture in a memory such that bandwidth can be reduced when retrieving an array portion of the picture from the memory, and a memory architecture are disclosed. The memory is subdivided into a plurality of words for storing a picture having rows and columns. The picture is partitioned into two or more stripes each having a predetermined number of columns. The number of bytes in one row of one stripe is equal to the number of bytes in one word, for storing the data in one row of a stripe in one word.

公开(公告)号：EP0847203B1

公开(公告)日：2006-05-24

申请号：EP97309486.5

申请日：1997-11-25

Applicant: STMicroelectronics, Inc.

Inventor： Owen, Jefferson Eugene ,  Balakrishnan, Jeyendran

IPC: H04N7/50

CPC classification number: H04N19/428 ,  H04N19/423 ,  H04N19/61

公开(公告)号：EP0847203A3

公开(公告)日：2000-03-08

申请号：EP97309486.5

申请日：1997-11-25

Applicant: STMicroelectronics, Inc.

Inventor： Owen, Jefferson Eugene ,  Balakrishnan, Jeyendran

IPC: H04N7/50

CPC classification number: H04N19/428 ,  H04N19/423 ,  H04N19/61

Abstract: A method of reducing the memory required for decompression of a compressed frame by storing frame in a compressed format using DCT based techniques and decoders for implementing such a method are disclosed. The decoder is coupled to a memory where the frame can be stored. The decoder includes a decoder module having a parser, a block decoder module and a motion compensation engine. The decoder module is coupled to a DCT encoder module, which has an output coupled to the memory. The decoder also includes a stored DCT decoder module, which has an input coupled to the memory, a first output coupled to the motion compensation module and a second output that functions as an output of the decoder.