Transmission device and transmission method

Abstract

This transmission device comprises: an analog signal generation unit that generates an analog signal corresponding to measurement data; a pre-processing unit that executes pre-processing for the generated analog signal; and an analog optical transmitter that executes first analog modulation for the analog signal for which the pre-processing has been executed, and transmits an optical signal corresponding to the analog signal for which the first analog modulation has been executed. The pre-processing may be frequency multiplexing processing. The pre-processing unit may execute the frequency multiplexing processing for the analog signal for which second analog modulation based on the intensity, the phase, or the frequency has been executed. The first analog modulation may be frequency modulation batch conversion or intensity modulation. The measurement data may be non-discrete waveform data. The non-discrete waveform data may be pixel data output from an imaging element. The pre-processing unit may select pixels from among a plurality of pixels provided in the imaging element. The pre-processing unit may execute pre-processing for pixel data of the selected pixels.

Claims

1. A transmitting device comprising: an analog signal generation unit that generates an analog signal according to measurement data; a pre-processing unit that performs pre-processing on the generated analog signal; and an analog optical transmitter that performs first analog modulation on the pre-processed analog signal and transmits an optical signal according to the analog signal on which the first analog modulation has been performed.

2. The transmitting device according to claim 1, wherein the preprocessing is frequency multiplexing.

3. The transmission device according to claim 2, wherein the preprocessing unit performs the frequency multiplexing on the analog signal on which a second analog modulation based on intensity, phase, or frequency has been performed.

4. The transmitting device according to claim 1, wherein the first analog modulation is a frequency modulation batch conversion or intensity modulation.

5. The transmitting device according to claim 1, wherein the measurement data is non-discrete waveform data.

6. The transmitting device according to claim 5, wherein the non-discrete waveform data is pixel data output from an image sensor.

7. The transmission device according to claim 6, wherein the preprocessing unit selects a pixel from among a plurality of pixels provided in the image sensor and performs the preprocessing on the pixel data of the selected pixel.

8. A transmission method performed by a transmitting device, comprising the steps of: generating an analog signal corresponding to measurement data; performing preprocessing on the generated analog signal; and performing first analog modulation on the preprocessed analog signal and transmitting an optical signal corresponding to the analog signal on which the first analog modulation has been performed.

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