US 2019/0173513 A1 · TRANSMISSION SYSTEM AND WIRELESS COMMUNICATION SYSTEM

Abstract

Provided is a transmission system including: a signal processing apparatus 2 configured to transmit, via a signal cable 4, a delta-sigma modulated signal obtained by performing delta-sigma modulation on a transmission signal that is an RF signal; and a wireless apparatus 3 configured to transmit, via the signal cable 4, a reception signal that is an RF signal. The signal processing apparatus 2 transmits the delta-sigma modulated signal to the wireless apparatus 3, and the wireless apparatus 3 transmits the reception signal to the signal processing apparatus 2. In the delta-sigma modulated signal, quantization noise is suppressed at the frequency of the reception signal. The reception signal is transmitted to the signal processing apparatus 2 while the delta-sigma modulated signal is being transmitted to the wireless apparatus 3.

Claims10

Dependent claims

A transmission system comprising:

a first apparatus configured to transmit, via a signal transmission path, a delta-sigma modulated signal obtained by performing delta-sigma modulation on a first signal that is an RF signal;
and
a second apparatus configured to transmit, via the signal transmission path, a second signal that is an RF signal, wherein
the first apparatus transmits the delta-sigma modulated signal to the second apparatus,
the second apparatus transmits the second signal to the first apparatus,
in the delta-sigma modulated signal, quantization noise is suppressed at a frequency of the second signal, and
the second signal is transmitted to the first apparatus while the delta-sigma modulated signal is being transmitted to the second apparatus.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/095,722Filed 5 Apr 2017

Priority

JP 2016-08707725 Apr 2016

Published

6 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

H03M 3/30
Conversion of analogue values to or from differential modulation: delta-sigma modulation
H03M 3/02
Conversion of analogue values to or from differential modulation: delta modulation, i.e. one-bit differential modulation
H03M 3/32
Delta-sigma modulation: with special provisions or arrangements for power saving, e.g. by allowing a sleep mode, using lower supply voltage for…
H03M 3/402
Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators: arrangements specific to bandpass modulators

Transmission system and wireless communication system

Life of this patent

Transmission system and wireless communication system

Life of this patent

Abstract

Claims10