Multiple serial access memory for use in feedback systems such a

Details Multiple serial access memory for use in feedback systems such a Multiple serial access memory for use in feedback systems such a

1991-11-19

1994-05-24

Groody, James J.

Television

Image signal processing circuitry specific to television

With details of static storage device

348714, 348402, H04N 5907

Patent

active

053153880

ABSTRACT:
A multiple serial access memory which includes a dynamic random access memory array is disclosed. The array is randomly addressed to input blocks of data. Address signals are provided to the array to output rows of data. A plurality of serial output ports are coupled to the output of the array for selectively latching different rows of data output from the array. The serial output ports are clocked to output the latched data therefrom. In an illustrated embodiment, each of the serial output ports contains a shift register having a length equal to the width of the memory array. The shift register is responsive to a first timing signal for latching a row of data from the array. A second timing signal actuates the shift register to shift a row of latched data. The serial access selector coupled to the shift register outputs a selected portion of the shifted data from the serial output port. The serial access memory has particular application as the frame store for a motion compensated interframe image coding/decoding system.

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