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Memory device and motion vector detection device

A storage device, motion vector technology, applied in static memory, digital memory information, information storage and other directions, can solve problems such as hindering high-speed and efficient processing of image data

Inactive Publication Date: 2010-11-03
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, when all data items are accumulated, waiting time is inevitably caused, which prevents high-speed and efficient processing of image data

Method used

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  • Memory device and motion vector detection device
  • Memory device and motion vector detection device
  • Memory device and motion vector detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0084] figure 1 The configuration of the motion compensation predictive encoder 100 according to one embodiment of the present invention is shown.

[0085] The encoder 100 includes an input terminal 101 that receives image data (frame data constituting a moving image) Di, and calculates the difference between the image data Di received at the input terminal 101 and predicted image data provided by a motion compensation circuit 110 as described later. A subtractor 102 of the difference, a DCT circuit 103 for performing a DCT (discrete cosine transform) operation on the difference data obtained by the subtractor 101, a quantization circuit 104 for quantizing the DCT coefficients obtained in the DCT circuit 103, and the output obtained by the quantization circuit 104 Output terminal 105 of coded data Do.

[0086] The encoder 100 also includes an inverse quantization circuit 106 for dequantizing the encoded data Do obtained in the quantization circuit 104, an inverse DCT circuit ...

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Abstract

The invention relates to a memory device and the like. The memory device comprises one or more memory block. The memory block has a memory cell array consists of multiple memory cells (210) arranged in a matrix form. A region of the multiple memory cells (210) includes multiple divisional domains (201a-201e) divided in the direction along word line (WL). Each of the word lines (WL) has multiple divisional selection lines (WLa-WLe) divided corresponding to the multiple divisional domains. The memory block has a switching mechanism (220) for switching the divisional word lines (WL) that are to be simultaneously activated in each of the divisional domains. Multiple memory cells (210) associated with each of the divisional word lines store a horizontal or vertical array of pixel data. The inventive memory device enables simultaneous access to multiple items of pixel data constituting a pixel block having an arbitrary configuration.

Description

[0001] This application is a divisional application of the invention patent application with the filing date of January 10, 2003, the application number of 03800279.5, and the invention title of "storage unit circuit, storage device, motion vector detector, and motion compensation predictor". technical field [0002] The present invention relates to memory cell circuits, memory devices, motion vector detectors, and motion compensated predictive encoders. Background technique [0003] With sequential data, people tend to prefer to work on relatively small regions of data at the same time. For example, when image data is processed, data to be processed on the target pixel is generated from several items of data of the target pixel and its surrounding pixels. In motion estimation (ME) of motion vectors by block matching, based on given pixel data in a given pixel block with a predetermined dimension at a certain position in the previous frame, a subsequent frame with An estima...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C8/14G11C11/417G11C11/41G11C11/401G11C11/407G11C11/413H03M7/36H04N19/105H04N19/136H04N19/176H04N19/189H04N19/196H04N19/42H04N19/423H04N19/436H04N19/50H04N19/503H04N19/51H04N19/61H04N19/625
Inventor 近藤哲二郎市川勉野出泰史
Owner SONY CORP