Device for generating memory address and mobile station using the address for writing/reading data
AssigneeLG Information & Communications, Ltd.
InventorJoo Heung Lee
Life of this patent
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Abstract
A device for generating memory addresses is provided that is suitable for generating memory addresses transposed in row/column directions with reference to a data successively stored therein along with a mobile station by using the same, and a method for writing/reading a data. The device includes a counter that generates 22n successive addresses in 2n bitstreams to provide row direction addresses, and a barrel shifter that shifts the generated 2n bitstreams by ‘n’ bits to provide column direction addresses. Thus, circuitry of a picture encoder of the mobile station or of an interleaver in a mobile communication system is reduced, and a faster operation speed is obtained.
Claims12
A mobile station for encoding and transmitting a picture data, comprising:
- a transposing memory that stores the picture data in a matrix formed of addresses in both a row direction and a column direction;
- a memory writing address generator that alternately generates a writing address in the row direction of the transposing memory and generates a writing address in the column direction of the transposing memory in response to a first control signal;
- and
- a memory reading address generator that alternately generates a reading address in the column direction of the transposing memory and generates a reading address in the row direction of the transposing memory in response to a second control signal.
Dependencies are inferred from the claim text.