DEM circuit, delta-sigma modulator, D/A converter, and wireless communication device

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United States of America Patent

PATENT NO 9287887
APP PUB NO 20140301253A1
SERIAL NO

14309325

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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DEM circuit (130) includes a switch (131) configured to receive an N-bit digital input signal (SD1) and shift bit positions of the digital input signal (SD1) based on a switch control signal (SC) in a circulating pattern to output the digital input signal (SD1) as an N-bit digital output signal (SD2), where N is an integer greater than or equal to 2, and a switch control signal generation circuit (132) including a plurality of pointers which move in an identical direction based on a predetermined rule, and configured to generate the switch control signal (SC), each time when the digital input signal (SD1) is input to the switch (131), by using the pointers in a predetermined order.

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Patent Owner(s)

  • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsukawa, Kazuo Osaka, JP 34 199
Mitani, Yosuke Kyoto, JP 18 148
Obata, Koji Osaka, JP 58 713

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