Search International and National Patent Collections

1. (WO2018101467) SECONDARY DELTA-SIGMA CONVERTER AND TRANSMISSION DEVICE

Pub. No.:    WO/2018/101467    International Application No.:    PCT/JP2017/043337
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Sat Dec 02 00:59:59 CET 2017
IPC: H03M 7/34
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: TANIO, Masaaki
谷尾 真明
Title: SECONDARY DELTA-SIGMA CONVERTER AND TRANSMISSION DEVICE
Abstract:
The present invention provides a secondary ΔΣ converter in which a decrease in operation speed is avoided. The secondary ΔΣ converter is provided with a plurality of integrators and a parallel higher-order bit processing unit. The parallel higher-order bit processing unit is provided with a plurality of addition/determination processing units. The addition/determination processing units receive first and second carry inputs and first and second state inputs, and output a quantized output and first and second state outputs. A first selector selects and outputs one from a plurality of sets of the first and second state outputs from the addition/determination processing unit. A second selector selects one from a plurality of quantized outputs from the addition/determination processing unit. The output from the first selector provides a selection control signal for the first and second selectors.