US Patent 7212784 Adaptive array apparatus, radio base station, and mobile phone

Patent 7212784 was granted and assigned to Sanyo on May, 2007 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Sanyo

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7212784

Date of Patent

May 1, 2007

Patent Application Number

11344384

Date Filed

January 31, 2006

Patent Primary Examiner

‌

Simon Nguyen

Patent abstract

Memory (237) stores relative correction values that indicate the differences of transfer characteristics between a) a radio unit made up of transmission circuit (211) and reception circuit (212), and b) a radio unit made up of transmission circuit (221) and reception circuit (222). Correction control unit (239), by means of phase shifter (240) and amplifier (241), uses the relative correction values to correct transmission signals. In similar fashion, the adaptive array apparatus and the radio base station perform corrections in order that identical array antenna patterns are formed at times of reception and transmission.

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