Kokubunji, Japan
Kokubunji, Japan

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Patent
Rion Co. | Date: 2017-02-22

A measurement system (10) includes a sensor amplifier (30) and a main body unit (10). The sensor amplifier (30) includes a first sensor amplifier communication unit (91) having a wireless communication function and a second sensor amplifier communication unit (92) having a wireless communication function, the second sensor amplifier communication unit (92) having a wireless communication function with a power consumption less than that of the first sensor amplifier communication unit (91). The main body unit (10) includes a first main body communication unit (85) and a second main body communication unit (86), the second main body communication unit (86) having a wireless communication function with a power consumption less than that of the first main body communication unit (85). The first sensor amplifier communication unit (91) and the first main body communication unit (85) are paired to perform the wireless communication. The second sensor amplifier communication unit (92) and the second main body communication unit (86) are similarly paired to perform the wireless communication.


Patent
Rion Co. | Date: 2017-02-15

When transmitting an input signal to a main body unit (10), a sensor amplifier (30) stores therein the input signal as measurement data (S01), and transmits the input signal to which transmission sequence information is added to the main body unit (10) (S02). By confirming the transmission sequence information added to the input signal, the main body unit (10) can confirm whether or not there is an omission in the input signal. When the measurement of a physical quantity ends (S03), the main body unit (10) transmits, to the sensor amplifier (30), a retransmission request requesting the retransmission of data relating to a missing portion (S04). Then, the sensor amplifier (30) extracts input signal data relating to the missing portion and stored therein on the basis of the retransmission request from the main body unit (10) (S05), and retransmits the extracted input signal data to the main body unit (10) (S06).


Patent
Rion Co. | Date: 2016-11-30

Provided is a particle counter including: a light source; a light superimposition unit configured to superimpose light beams; an irradiation optical system configured to irradiate a fluid in a flow passage with one of a plurality of light beams from the light source; a detection optical system configured to make a part of scattered light beams by a particle in the fluid enter the light superimposition unit; a reference optical system configured to split another one of the plurality of light beams into a plurality of reference light beams and makes the reference light beams enter the light superimposition unit; and a counting unit configured to count the particles on the basis of detection signals corresponding to an interference light beam received by a light receiver. The interference light beam is generated by interference between the scattered light beam and one of the reference light beams at the light superimposition unit, and is received by the light receiver corresponding to the reference light beam.


Patent
RION Co. | Date: 2015-07-06

A hearing aid according to an embodiment of the present disclosure includes: a microphone configured to convert sound into an electric signal and output a first signal; a receiver configured to convert the third signal that is generated by performing predetermined hearing aid processing on a second signal, into sound; a first feedback removal unit having an adaptive filter configured to adaptively estimate a first transfer function of a sound feedback path from the receiver to the microphone; and a second feedback removal unit having a fixed filter configured to receive the third signal and use a fixed filter coefficient based on a second transfer function of a vibration feedback path from the receiver to the microphone. The second signal is generated by removing from the first signal, output signals from the adaptive filter and the fixed filter.


Patent
Rion Co. | Date: 2015-03-25

If input signal is transmitted to a main body unit (10), a sensor amplifier (30) stores the input signal in itself as measurement data (S01), and transmits the input signal with the added transfer order information to the main body unit (10) (S02). By checking the transfer order information added to the input signal, the main body unit (10) can confirm if the input signal is deficient or not. Upon the end of the measurement of the physical quantity (S03), the main body unit (10) transmits the retransmission request that requests the retransmission of the deficient portion of the data to the sensor amplifier (30) (S04). According to the retransmission request from the main body unit (10), the sensor amplifier (30) extracts the deficient portion of the input signal data stored in itself (S05) and retransmits the extracted input signal data to the main body unit (10) (S06).


A reverberation suppression apparatus includes: an instantaneous value calculation unit that calculates an instantaneous value/instantaneous values in an envelope of values correlating with the absolute value or the square of an input signal; a reverberation estimation unit that calculates an exponential moving average of the instantaneous value(s) as an estimated reverberation component; a gain derivation unit that derives a gain corresponding to the input signal according to the estimated reverberation component and the instantaneous value(s) when the each instantaneous value is larger than the estimated reverberation component, and derives a lower limit of the gain as the gain corresponding to the input signal when the each instantaneous value is smaller than the estimated reverberation component; a smoothing unit that performs a smoothing process on the gain; and a gain processing unit that applies the gain to amplitude adjustment of the input signal thereafter.


An electromechanical transducer of the invention comprises a structural unit, an armature, and first and second elastic members. The structural unit includes at least one pair of magnets, a yoke conducting a magnetic flux generated by the magnets, and a coil supplied with an electric signal. The armature has an inner portion disposed to pass through an internal space of the structural unit and first and second outer portions protruding on both sides from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in directions opposite to each other in the inner portion. The first and second elastic members connect between the first and second outer portions of the armature and the structural unit, respectively.


Patent
Rion Co. | Date: 2015-09-21

A particle counter for chemical solution in this disclosure uses a flow cell through which a chemical solution including particles flows, a laser light, and a light-receiving element array. Scattered light from the particles passing through a detection region on an optical path of the laser light in the flow cell is condensed to the light-receiving element array. The laser light in the center of the detection region has an energy density of 310^(8 )mW/cm^(2 )or more. Each of plural light-receiving elements (a) is larger in length and width than a spot diameter of the scattered light, and (b) receives the scattered light from a region with a size of 760 m^(2 )or less included in the detection region. The signal processing unit counts the particles passing through the detection region by use of a threshold corresponding to the smallest measurable particle size of 0.03 m.


An electromechanical transducer of the invention comprises a structural unit, an armature, and two elastic units. The structural unit includes magnets, a yoke and a coil. The armature has an inner portion disposed to pass through inside the structural unit and two outer portions protruding from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in reverse directions in the inner region. The elastic units give restoring forces to the outer portions in response to displacement of the armature due to magnetic forces of the magnetic circuit. Each of the elastic units includes a pair of elastic members symmetrically arranged via the armature in a direction of the displacement. Each of the elastic members has one end engaging one of the outer portions and another end engaging one of the elastic member attaching portions.


An electromechanical transducer of the invention comprises a structural unit, an armature (22) , and first and second elastic members (23, 24). The structural unit includes at least one pair of magnets (14, 17), a yoke (11, 12) conducting a magnetic flux generated by the magnets, and a coil (13) supplied with an electric signal. The armature (22) has an inner portion (22a) disposed to pass through an internal space of the structural unit and first and second outer portions (22b, 22c) protruding on both sides from the inner portions, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in directions opposite to each other in the inner portion. The first and second elastic members (23, 24) connect between the first and second outer portions of the armature and the structural unit, respectively.

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