Abstract: A thrombus detecting apparatus provided with: a transducer (10), which is attached to a monitor portion of a subject and transmits and receives ultrasonic waves, a transmitter and receiver unit (11), which transmits and applies driving pulses to the transducer (10) and receives echo signals output from the transducer, and a detector (12) making use of ultrasonic waves, which processes output signals of the transmitter and receiver unit (11) and detects a thrombus passing through a blood vessel, and/or a light source (21), which generates living body inspection light, a probe (22), which is attached to a monitor portion of the subject and irradiates the living body inspection light from the light source (21) to the subject, a light receiving unit (25), which receives living body inspection light irradiated from the probe (22) and passed through the subject and outputs electrical signals depending on the intensity of the received living body inspection light, and a detector (26) making use of living body light,

Abstract: An ultrasonic diagnostic apparatus acquires images different in a frequency. The invention is composed of a transducer including plural elements for sending an ultrasonic wave and receiving the reflected ultrasonic wave, analog to digital converters that digitize plural received signals, first mixers that respectively multiply a signal from the converter and a first digital reference signal, first filters that respectively extract a signal having a predetermined center frequency from a signal from each first mixer, digital delay units that respectively delay a signal from each first filter, an adder that adds plural signals from the digital delay units, and a second mixer that multiplies a signal from the adder and a second digital reference signal. An envelope detector detects a signal from the second mixer, and a scan converter converts a signal from the detector to a picture signal for display, so the pass band of the filter is not required to be changed.

Abstract: The invention provides an ultrasonic diagnostic apparatus for acquiring images different in a frequency, and the ultrasonic diagnostic apparatus according to the invention is composed of a transducer including plural elements for sending an ultrasonic wave and receiving the reflected ultrasonic wave, analog to digital converters that digitize plural received signals, first mixers that respectively multiply a signal output from the analog to digital converter and a first digital reference signal, first filters that respectively extract a signal having a predetermined center frequency from a signal output from each first mixer, digital delay units that respectively delay a signal output from each first filter, an adder that adds plural signals output from the digital delay units, a second mixer that multiplies a signal output from the adder and a second digital reference signal, an envelope detector that detects a signal output from the second mixer, a scan converter that converts a signal output from the envel