Wireless magnetic resonance imaging apparatus generating synchronized clock-regenerated signals and video
First Claim
1. A magnetic resonance imaging apparatus comprisinga probe unit and a control/imaging unit, the probe unit including:
- a probe which detects a magnetic resonance signal in a subject;
an analog-to-digital converter which samples the magnetic resonance signal using a sampling clock signal, and converts the sampled magnetic resonance signal into a digital signal;
a first transmitter which converts the digital signal into a first radio signal and transmits the first radio signal through a first wireless channel;
a first receiver which receives a second radio signal transmitted through a second wireless channel, and performs detection on the second radio signal in order to obtain a first received signal; and
a clock regeneration unit configured to regenerate a clock component from the first received signal in order to generate a regenerated clock signal that is used as a base signal for the sampling clock signal, the control/imaging unit including;
a second receiver which receives the first radio signal in order to obtain a second received signal;
a clock generator which generates a reference clock signal;
a data processor which performs data processing on the second received signal in synchronism with the reference clock signal in order to obtain a video signal, the data processing including image reconstruction processing; and
a second transmitter including a modulator which modulates a carrier wave using the reference clock signal, the second transmitter converting the reference clock signal into the second radio signal andtransmitting the second radio signal through the second wireless channel to the first receiver in order to obtain the first received signal from which said clock component is regenerated by said clock regeneration unit.
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Accused Products
Abstract
A magnetic resonance imaging apparatus includes a probe unit and a control/imaging unit. The probe unit includes a converter converting a sampled magnetic-resonance signal into a digital signal, a first transmitter converting the digital signal into a first-radio signal, a first receiver receiving and performing detection on the second-radio signal to obtain a first-received signal, and a clock-regeneration unit regenerating a clock component from the first-received signal to generate a regenerated-clock signals. The control/imaging unit includes a second-receiver receiving the first-radio signal to obtain a second-received signal, a data processor performing data processing on the second-received signal in synchronism with a reference-clock signal to obtain a video signal, and a second transmitter which modulates a carrier wave using the reference-clock signal, converts the reference-clock signal into the second-radio signal, and transmits the second-radio signal through the second-wireless channel.
36 Citations
13 Claims
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1. A magnetic resonance imaging apparatus comprising
a probe unit and a control/imaging unit, the probe unit including: -
a probe which detects a magnetic resonance signal in a subject; an analog-to-digital converter which samples the magnetic resonance signal using a sampling clock signal, and converts the sampled magnetic resonance signal into a digital signal; a first transmitter which converts the digital signal into a first radio signal and transmits the first radio signal through a first wireless channel; a first receiver which receives a second radio signal transmitted through a second wireless channel, and performs detection on the second radio signal in order to obtain a first received signal; and a clock regeneration unit configured to regenerate a clock component from the first received signal in order to generate a regenerated clock signal that is used as a base signal for the sampling clock signal, the control/imaging unit including; a second receiver which receives the first radio signal in order to obtain a second received signal; a clock generator which generates a reference clock signal; a data processor which performs data processing on the second received signal in synchronism with the reference clock signal in order to obtain a video signal, the data processing including image reconstruction processing; and a second transmitter including a modulator which modulates a carrier wave using the reference clock signal, the second transmitter converting the reference clock signal into the second radio signal and transmitting the second radio signal through the second wireless channel to the first receiver in order to obtain the first received signal from which said clock component is regenerated by said clock regeneration unit. - View Dependent Claims (2, 3, 4)
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5. A magnetic resonance imaging apparatus comprising:
a probe unit and a control/imaging unit, the probe unit including; a probe which detects a magnetic resonance signal in a subject; an analog-to-digital converter which samples the magnetic resonance signal using a sampling clock signal, and converts the sampled magnetic resonance signal into a first digital signal; a pre-transmission processor which performs pre-transmission processing on the first digital signal in synchronism with a first processing clock signal in order to obtain a second digital signal; a first transmitter which converts the second digital signal into a first radio signal and transmits the first radio signal through a first wireless channel; a first receiver which receives a second radio signal transmitted through a second wireless channel, and performs detection on the second radio signal in order to obtain a first received signal; a clock regeneration unit configured to regenerate a clock component from the first received signal in order to generate a regenerated clock signal; and a first multiplier which multiplies the regenerated clock signal by preset values in order to generate the sampling clock signal and the first processing clock signal, the control/imaging unit including; a second receiver which receives the first radio signal in order to obtain a second received signal; a clock generator which generates a reference clock; a second multiplier which multiplies the reference clock signal by a first preset value in order to generate a second processing clock signal; a data processor which performs data processing on the second received signal using the second processing clock signal in order to obtain a magnetic resonance imaging signal, the data processing including image reconstruction processing; and a second transmitter including a modulator which modulates a carrier wave using the reference clock signal, the second transmitter converting the reference clock signal into the second radio signal and transmitting the second radio signal through the second wireless channel to the first receiver in order to obtain the first received signal from which said clock component is regenerated by said clock regeneration unit. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
Specification