Ultrasound diagnosis apparatus and ultrasound probe
According to one embodiment, an ultrasound diagnosis apparatus includes a transmission beam former and a transmitting circuit. The transmission beam former generates a transmission pulse. The transmitting circuit supplies an ultrasound transducer with the transmission pulse received from the transmission beam former as a drive signal. The supply of a clock necessary for the generation of the transmission pulse is stopped during a substantial reception period of echo signals from the ultrasound transducer.
1. An ultrasound diagnosis apparatus, comprising:
a transmission beam former configured to generate a transmission pulse; and
a plurality of transmitting circuits configured to supply a plurality of ultrasound transducers with transmission pulses received from the transmission beam former, wherein
supply of a clock necessary for generation of the transmission pulses is stopped during a reception period of echo signals from the plurality of ultrasound transducers,
the transmission beam former includes:
a plurality of pulse generators configured to generate the transmission pulses to be supplied to the plurality of transmitting circuits;
a plurality of delay calculators configured to calculate a plurality of delays to be added to the transmission pulses, respectively; and
a clock generator configured to generate the clock to be supplied to the plurality of delay calculators and the plurality of pulse generators, and
the clock generator is further configured to:
being triggered by reception of transmission completion signals from all the plurality of pulse generators, stop the supply of the clock to the plurality of delay calculators during the reception period of echo signals from the plurality of ultrasound transducers; and
cause the plurality of delay calculators to wait for operation until the clock generator receives a transmission synchronization signal.
2. The ultrasound diagnosis apparatus of claim 1 , wherein the clock is supplied or the supply of the clock is stopped with respect to each channel of the plurality of transmitting circuits.
3. The ultrasound diagnosis apparatus of claim 2 , wherein the clock is supplied or the supply of the clock is stopped with respect to each of the plurality of delay calculators or each of the plurality of pulse generators respectively constituting a channel.
4. The ultrasound diagnosis apparatus of claim 2 , wherein the clock is supplied to a channel used in an examination mode selected for an examination to be performed on a subject.
5. The ultrasound diagnosis apparatus of claim 3 , wherein the clock is supplied to a channel used in an examination mode selected for an examination to be performed on a subject.
6. The ultrasound diagnosis apparatus of claim 2 , wherein the clock is supplied to a channel used in an ultrasound probe connected to the ultrasound diagnosis apparatus.
7. The ultrasound diagnosis apparatus of claim 3 , wherein the clock is supplied to a channel used in an ultrasound probe connected to the ultrasound diagnosis apparatus.
8. The ultrasound diagnosis apparatus of claim 1 , wherein the clock generator is further configured to:
being triggered by the reception of the transmission completion signals from all the plurality of pulse generators, stop the supply of the clock to the plurality of delay calculators and the plurality of pulse generators during the reception period of echo signals from the plurality of ultrasound transducers; and
cause the plurality of delay calculators and the plurality of pulse generators to wait for operation until the clock generator receives the transmission synchronization signal.
9. An ultrasound probe, comprising:
a transmission beam former configured to generate a transmission pulse; and
a plurality of transmitting circuits configured to supply a plurality of ultrasound transducers with transmission pulses received from the transmission beam former, wherein
supply of a clock necessary for generation of the transmission pulses is stopped during a reception period of echo signals from the plurality of ultrasound transducers,
the transmission beam former includes:
a plurality of pulse generators configured to generate the transmission pulses to be supplied to the plurality of transmitting circuits;
a plurality of delay calculators configured to calculate a plurality of delays to be added to the transmission pulses, respectively; and
a clock generator configured to generate the clock to be supplied to the plurality of delay calculators and the plurality of pulse generators, and
the clock generator is further configured to:
being triggered by reception of transmission completion signals from all the plurality of pulse generators, stop the supply of the clock to the plurality of delay calculators during the reception period of echo signals from the plurality of ultrasound transducers; and
cause the plurality of delay calculators to wait for operation until the clock generator receives a transmission synchronization signal.
10. The ultrasound probe of claim 9 , wherein the clock is supplied or the supply of the clock is stopped with respect to each channel of the plurality of transmitting circuits.
11. The ultrasound probe of claim 10 , wherein the clock is supplied or the supply of the clock is stopped with respect to each of the plurality of delay calculators respectively constituting a channel.
12. The ultrasound probe of claim 10 , wherein the clock is supplied to a channel used in an examination mode selected for an examination to be performed on a subject.
13. The ultrasound probe of claim 11 , wherein the clock is supplied to a channel used in an examination mode selected for an examination to be performed on a subject.