Title:
PHASE-DIGITAL CONVERTER, WIRELESS COMMUNICATION DEVICE, INTEGRATED CIRCUIT, AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/025966
Kind Code:
A1
Abstract:
[Problem] To provide a phase-digital converter with which reduced power consumption is possible. [Solution] This phase-digital converter (1) has: first to 2n-th (n is an integer equal to 1 or greater) sample/hold units which, in sync with a reference symbol, sample and hold a multiphase periodic signal of first to 2n-th phases, and generate first to 2n-th multiphase phase signals; a selector which selects a signal period of monotonic increase or monotonic decrease contained in the first to 2n-th multiphase signals, for each of 1/2ncycles, on the basis of an n-bit first digital signal, and generates a monotonically changing signal; and a quantizer for quantizing the monotonically changing signal to an (m – n)-bit (m is an integer equal to 2 or greater, and m > n) second digital signal.
Inventors:
SAI AKIHIDE (JP)
FURUTA MASANORI (JP)
ITAKURA TETSURO (JP)
FURUTA MASANORI (JP)
ITAKURA TETSURO (JP)
Application Number:
PCT/JP2014/072063
Publication Date:
February 26, 2015
Filing Date:
August 22, 2014
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
H03K5/26; H03L7/091
Foreign References:
| JP2009218729A | 2009-09-24 | |||
| JP2010021686A | 2010-01-28 | |||
| JP2012070087A | 2012-04-05 | |||
| JP2012522466A | 2012-09-20 |
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
Download PDF: