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US 2016/0112227 A1Published application
Transmitting device, receiving device, and transmitting and receiving system
AssigneesThe University of Tokyo, Fuji Electric Co., Ltd.
InventorsHaruki Kawakami, Tohru Asami, Yoshihiro Kawahara, Masami Kishiro, Takahiro Kudo
Life of this patent
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Abstract
A transmitting device includes: a compressing unit configured to generate and output a compressed digital signal that has been compressed, by converting an input digital signal by use of a Walsh function and extracting a specific frequency component.
Claims16
A transmitting device, comprising:
- a compressing unit configured to generate and output a compressed digital signal that has been compressed, by converting an input digital signal by use of a Walsh function and extracting a specific frequency component.
A receiving device, comprising:
- a decompressing unit configured to decompress a compressed digital signal, which has been compressed by being converted by use of a Walsh function and a specific frequency component being extracted, into a transmission side input digital signal, by using an observation matrix corresponding to a Walsh function of the specific frequency component.
A transmitting and receiving system, comprising:
- a transmitting device, having:
- a compressing unit configured to generate and output a compressed digital signal that has been compressed, by converting an input digital signal by use of a Walsh function and extracting a specific frequency component;
- and
- a transmitting unit configured to wirelessly transmit and output the compressed digital signal;
- and
- a receiving device, having:
- a receiving unit configured to receive the compressed digital signal wirelessly transmitted and output by the transmitting unit;
- and
- a decompressing unit configured to decompress the compressed digital signal received by the receiving unit into the input digital signal by using an observation matrix corresponding to a Walsh function of the specific frequency component.
6 more elements
A transmitting and receiving system, comprising:
- a transmitting device, having:
- a first compressing unit configured to generate and output a first compressed digital signal that has been compressed, by converting an input digital signal by use of a Walsh function and extracting a specific frequency component;
- a second compressing unit configured to generate and output a second compressed digital signal that has been compressed, by converting an input digital signal with an observation matrix that uses a random matrix;
- a transmission side switch over unit configured to switch over, based on a switch over instruction signal, between processes by the first compressing unit and the second compressing unit;
- and
- a transmitting unit configured to wirelessly transmit and output the first compressed digital signal or the second compressed digital signal that has been output by the switch over by the transmission side switch over unit;
- and
- a receiving device, having:
- a receiving unit configured to receive the first compressed digital signal or the second compressed digital signal that has been wirelessly transmitted and output by the transmitting unit;
- a first decompressing unit configured to decompress the first compressed digital signal into the input digital signal by using an observation matrix corresponding to a Walsh function of the specific frequency component, when the switch over instruction signal instructs the process by the first compressing unit;
- a second decompressing unit configured to decompress the second compressed digital signal into the input digital signal by using the observation matrix that uses the random matrix, when the switch over instruction signal instructs the process by the second compressing unit;
- a reception side switch over unit configured to switch over, based on the switch over instruction signal, between processes by the first decompressing unit and the second decompressing unit;
- and
- a switch over instruction unit configured to send out the switch over instruction signal to the transmission side switch over unit and the reception side switch over unit.
11 more elements
Dependencies are inferred from the claim text.