Toru Kitayabu

Generalized architecture of concurrent dual-band transmitter for spectrum aggregation system

Hiroyasu Ishikawa, Toru Kitayabu, T. Kitayabu, 2010, 21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.

A Delta-Sigma Modulator Using a Non-uniform Quantizer Adjusted for the Probability Density of Input Signals

Hiroshi Shirai, Hiroyasu Ishikawa, Toru Kitayabu, 2012, IEICE Trans. Commun..

Concurrent dual-band transmitter architecture for spectrum aggregation system

Hiroyasu Ishikawa, Toru Kitayabu, Yoshiaki Amano, 2010, 2010 IEEE Radio and Wireless Symposium (RWS).

Effect of input-signal statistical property in delta-sigma modulator with non-uniform quantization

Hiroshi Shirai, Hiroyasu Ishikawa, Toru Kitayabu, 2012, 2012 IEEE Radio and Wireless Symposium.

A Study of Cross-Carrier Precoding for Carrier Aggregation System

Yuji Ikeda, Hiroyasu Ishikawa, Issei Kanno, 2011 .

B-17-14 Multi-system Optimization of RF Front End with Relaxation of Requirements

Toshiyuki Maeyama, Toru Kitayabu, 2007 .

Sampling Frequency Selection Scheme based on System-clock in Multi-signal Simultaneous Reception

Hiroshi Shirai, Toshiyuki Maeyama, Toru Kitayabu, 2007 .

Implementation of concurrent dual-band receiver using IF undersampling

Hiroyasu Ishikawa, Toru Kitayabu, T. Kitayabu, 2011, 2011 IEEE Radio and Wireless Symposium.

Proposal of cross-carrier precoding for carrier aggregation enhancement

Yuji Ikeda, Hiroyasu Ishikawa, Issei Kanno, 2011, 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications.

Delta-sigma modulator with non-uniform quantization

Hiroshi Shirai, Hiroyasu Ishikawa, Toru Kitayabu, 2011, 2011 IEEE Radio and Wireless Symposium.