Ultrasound diagnosis apparatus and method of generating pulse for generating ultrasonic signal
An ultrasound diagnosis apparatus according to an embodiment of the present disclosure may include a variable voltage supply unit configured to supply a driving voltage to the transmission circuit, a transmission circuit configured to generate a pulse signal for generating an ultrasonic signal using the driving voltage, and a controller configured to store compensation information for compensating for a voltage drop of the driving voltage and to provide a voltage control signal including information on a driving voltage for which the voltage drop is compensated for based on the compensation information to the variable voltage supply unit, wherein the variable voltage supply unit supplies the compensated driving voltage to the transmission circuit in response to the voltage control signal.
1 . An ultrasound diagnosis apparatus, comprising:
a variable voltage supply unit, comprising circuitry, configured to supply a driving voltage;
a transmission circuit configured to generate a pulse signal for generating an ultrasonic signal using the driving voltage; and
a controller configured to store compensation information for compensating for a voltage drop of the driving voltage and to provide a voltage control signal comprising information on a driving voltage for which the voltage drop is compensated for based on the compensation information to the variable voltage supply unit,
wherein the variable voltage supply unit is configured to supply the compensated driving voltage to the transmission circuit in response to the voltage control signal, and
wherein the compensation information comprises information on a time point of voltage drop of the driving voltage and information on an amount of voltage drop of the driving voltage,
wherein the controller is configured to provide a test control signal comprising information on a test voltage having a predetermined voltage magnitude and a predetermined duration to the variable voltage supply unit, and generate the compensation information based on the test voltage output from the variable voltage supply unit according to the test control signal, and
wherein the information on an amount of voltage drop of the driving voltage corresponds to information on an amount of voltage drop of the test voltage.
2 . The ultrasound diagnosis apparatus of claim 1 , wherein
the variable voltage supply unit is configured to generate the test voltage in response to the test control signal and then output the test voltage to the controller.
3 . The ultrasound diagnosis apparatus of claim 2 , wherein the compensation information comprises:
information on a time point at which the test voltage starts to drop from the predetermined voltage magnitude; and
information on an amount of change of the test voltage over time.
4 . The ultrasound diagnosis apparatus of claim 2 , wherein the information on the compensated driving voltage comprises:
information on a target level of the compensated driving voltage;
information on a duration for which the compensated driving voltage is supplied to the transmission circuit;
information on a voltage rising time point at which the compensated driving voltage starts to rise from the target level;
information on a time point at which a level of the compensated driving voltage decreases to the target level again;
information on an amount of voltage rise of the compensated driving voltage; and
information on an amount of change of the compensated driving voltage over time.
5 . The ultrasound diagnosis apparatus of claim 4 , wherein the variable voltage supply unit comprises:
a high voltage generation unit, comprising circuitry, configured to receive an input voltage input from an outside and boost the input voltage to a first voltage equal to or higher than levels of the test voltage and the compensated driving voltage;
a voltage stabilization unit, comprising circuitry, configured to drop or stabilize the first voltage received from the high voltage generation unit to generate a second voltage having the same magnitude as the test voltage and the compensated driving voltage; and
a voltage controller configured to control the high voltage generation unit and the voltage stabilization unit based on the test control signal or the voltage control signal received from the controller,
wherein the voltage controller is configured to control the high voltage generation unit and the voltage stabilization unit so that the magnitude of the first voltage gradually rises from a time point corresponding to the voltage rising time point based on the voltage control signal.
6 . The ultrasound diagnosis apparatus of claim 2 , wherein the controller comprises:
a compensation information storage unit, comprising at least one memory, configured to store the compensation information; and a control signal generating unit, comprising at least one processor, configured to receive the compensation information from the compensation information storage unit and generate the voltage control signal comprising the information on the compensated driving voltage.
7 . The ultrasound diagnosis apparatus of claim 1 , further comprising:
an input unit, comprising at least one of a key or a touch screen, configured to receive at least one user's input and provide a command signal corresponding to the user's input to the controller,
wherein the input unit is configured to receive a user's input to select any one mode of a first operation mode and a second operation mode in which power higher than that of the first operation mode is used, and
the controller is configured to perform an operation of generating the compensation information in response to a command signal corresponding to the second operation mode provided from the input unit.
8 . The ultrasound diagnosis apparatus of claim 7 , wherein the input unit is further configured to receive a user's input to change at least one of the plurality of parameters related to the generation of the ultrasonic signal,
wherein the controller is configured to, in the second operation mode, perform the operation of generating the compensation information whenever the user's input to change at least one of the plurality of parameters is received.
9 . The ultrasound diagnosis apparatus of claim 1 , further comprising:
an input unit comprising at least one of a key or a touch screen, configured to receive a user's input which set or change at least one of a plurality of parameters related to the generation of the ultrasonic signal,
wherein the controller comprises a compensation information storage unit, comprising at least one memory, in which the compensation information is stored, and the compensation information comprises a plurality of measurement conditions for transmitting an ultrasonic signal for an object and the compensation information for each of the plurality of measurement conditions, and
the controller comprises a control signal generating unit, comprising at least one processor, configured to receive compensation information for, among the plurality of measurement conditions stored in the compensation information storage unit, a measurement condition corresponding to the plurality of parameters set or changed by the user's input from the compensation information storage unit, and to generate information on the compensated driving voltage.
10 . A method of generating a pulse signal for generating an ultrasonic signal, the method comprising:
storing compensation information for compensating for a voltage drop of a driving voltage;
generating information on a driving voltage for which the voltage drop is compensated for based on the compensation information;
generating a compensated driving voltage based on the information on the compensated driving voltage;
generating the pulse signal using the compensated driving voltage; providing a test control signal comprising information on a test voltage having a predetermined voltage magnitude and a predetermined duration to a variable voltage supply unit; and
generating the compensation information based on the test voltage output from the variable voltage supply unit according to the test control signal,
wherein the compensation information comprises information on a time point of voltage drop of the driving voltage and information on an amount of voltage drop of the driving voltage, and the information on an amount of voltage drop of the driving voltage corresponds to information on an amount of voltage drop of the test voltage.
11 . The method of claim 10 , wherein the compensation information comprises:
information on a time point at which the test voltage starts to drop from the predetermined voltage magnitude; and
information on an amount of change of the test voltage over time.
12 . The method of claim 10 , wherein the information on the compensated driving voltage comprises:
information on a target magnitude of the compensated driving voltage;
information on a duration for which the compensated driving voltage is supplied to a transmission circuit generating the pulse signal;
information on a voltage rising time point at which the compensated driving voltage starts to rise from the target magnitude;
information on an amount of voltage rise of the compensated driving voltage; and
information on an amount of change of the compensated driving voltage over time.
13 . The method of claim 10 , wherein the storing of the compensation information comprises storing a plurality of measurement conditions for transmitting an ultrasonic signal for an object and the compensation information for each of the plurality of measurement conditions in a compensation information storage unit comprising at least one memory.
14 . The method of claim 13 , further comprising:
receiving a user's input for setting or changing a plurality of parameters related to the generation of the ultrasonic signal,
wherein the generating of the information on the compensated driving voltage comprises, by receiving compensation information for, among the plurality of measurement conditions stored in the compensation information storage unit, a measurement condition corresponding to the plurality of parameters set or changed by the user's input from the compensation information storage unit, generating information on the compensated driving voltage corresponding to the set or changed plurality of parameters.