Title:
Transmitter
Document Type and Number:
Japanese Patent JP6252478
Kind Code:
B2
Abstract:
A transmitter includes: multiple digital transmitters which perform delta-sigma modulation on the same baseband signal; a combiner that combines the output signals from the plural digital transmitters and outputs the combined result; a control unit that generates an external signal different for every digital transmitter, to be supplied to each of the digital transmitters; and, an input means that supplies the different external signal for every digital transmitter, to the input terminal or the internal node of a delta-sigma modulator that performs the delta-sigma modulation, the delta-sigma modulator being provided for every digital transmitter.
Inventors:
Shinichi Hori
Kunihiro Kazuaki
Kazumi Shiikuma
Kunihiro Kazuaki
Kazumi Shiikuma
Application Number:
JP2014535621A
Publication Date:
December 27, 2017
Filing Date:
September 17, 2013
Export Citation:
Assignee:
NEC
International Classes:
H04B1/04; H03F3/217; H03F3/68
Domestic Patent References:
| JP2011091757A | ||||
| JP2006254307A | ||||
| JP2005086611A |
Foreign References:
| WO2011070952A1 |
Other References:
Tsai-Pi Hung et al.,Design of H-Bridge Class-D Power Amplifiers for Digital Pulse Modulation Transmitters,IEEE Trans. Microwave Theory and Techniques,2007年12月,vol.55, NO.12, Dec.2007,pp.2845-2855
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata