Pulse generator, semiconductor integrated circuit, and wireless data transmission method
AssigneeFujitsu Limited
InventorYoichi Kawano
Life of this patent
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Abstract
A pulse generator, which is configured to generate a burst pulse formed by burst oscillation signals oscillated in a predetermined time period, includes a burst oscillation circuit configured to generate the burst oscillation signals of different frequencies; and a control circuit configured to control the burst oscillation circuit so as to select the frequencies of the burst oscillation signals from at least two different frequencies or to stop the burst oscillation signals.
Claims12
A pulse generator configured to generate a burst pulse formed by burst oscillation signals oscillated in a predetermined time period, comprising:
- a burst oscillation circuit configured to generate the burst oscillation signals of different frequencies;
- and
- a control circuit configured to control the burst oscillation circuit so as to select the frequencies of the burst oscillation signals from at least two different frequencies or to stop the burst oscillation signals, wherein
- the burst oscillation circuit includes a plurality of oscillators configured to oscillate the different frequencies, and
- the control circuit includes a plurality of oscillator output select switches configured to select one of outputs of the plurality of oscillators.
A pulse generator configured to generate a burst pulse formed by burst oscillation signals oscillated in a predetermined time period, comprising:
- a burst oscillation circuit configured to generate the burst oscillation signals of different frequencies;
- and
- a control circuit configured to control the burst oscillation circuit so as to select the frequencies of the burst oscillation signals from at least two different frequencies or to stop the burst oscillation signals, wherein
- the burst oscillation circuit includes:
- an impulse generation circuit configured to generate an impulse;
- and
- a plurality of band-pass filters configured to generate the plurality of different frequencies by passing the generated impulse.
A semiconductor integrated circuit comprising:
- a pulse generator configured to generate a burst pulse formed by burst oscillation signals oscillated in a predetermined time period, including a burst oscillation circuit configured to generate the burst oscillation signals of different frequencies, and a control circuit configured to control the burst oscillation circuit so as to select the frequencies of the burst oscillation signals from at least two different frequencies or to stop the burst oscillation signals;
- and
- a baseband circuit configured to process data and input the processed data to the burst control signal generation circuit, wherein
- the burst oscillation circuit includes a plurality of oscillators configured to oscillate the different frequencies, and
- the control circuit includes a plurality of oscillator output select switches configured to select one of outputs of the plurality of oscillators.
A wireless data transmission method for wirelessly performing a data transmission by presence or absence of a burst pulse formed by burst oscillation signals which are oscillated in a predetermined time period, the wireless data transmission method comprising:
- setting a frequency of each of the burst oscillation signals to any one of a plurality of different frequencies;
- and
- performing the data transmission corresponding to the presence or absence of the burst pulse, and the plurality of different frequencies of the burst oscillation signals, wherein the wireless data transmission method further comprises:
- dividing a band to be used into a plurality of sub-bands;
- and
- assigning the plurality of different frequencies to the divided sub-bands, respectively.
Dependencies are inferred from the claim text.