摘要:
A receiver-in-ear assembly (100) comprises: a housing (104) including a cavity (102a) extending through the housing (104); an optical transducer (201) being mounted in the cavity (102a) within a thickness of the housing (104), the optical transducer (201) being mounted on a circuit board layer (208) such that a spacing (207) exists between a side of the optical transducer (201) and a sidewall (216) of the cavity (102a); the circuit board layer (208) extending underneath the housing (104) and touching the housing (104) such that the optical transducer (201) is held within the cavity (102a) without touching the housing (100); and a protective substance (210) forming a shield over the optical transducer (201) and the cavity (102a), the protective substance (210) configured to affect a field of view of the optical transducer (201).
摘要:
A phase correcting system for connection with a transducer. The phase correction may take place before amplifying the output of the transducer. The phase correction system comprises a circuit configured to low-pass filter an input and feed the output to the non-signal terminal of the transducer. This circuit may comprise a transconductance amplifier.
摘要:
The present invention relates to a microphone module comprising at least two directional microphones having different polar patterns and a single front sound inlet and a single rear sound inlet. The present invention provides a compact and space saving microphone module being less sensitive for mismatch or drift between the applied directional microphones and thereby very robust in directional performance. The microphone module of the present invention is, in particular, suitable in relation to hearing aid applications. The present invention further relates to an associated method for handling and processing signals from the at least two directional microphones.
摘要:
The present invention relates to a micro-electromechanical transducer comprising one or more moveable members, and a viscoelastic substance having a predetermined viscoelasticity, the viscoelastic substance being adapted to influence the response of the transducer in a predetermined manner. The micro-electromechanical transducer of the present invention may include a MEMS transducer, such as a MEMS microphone, a MEMS vibration sensor, a MEMS acceleration sensor, a MEMS receiver.
摘要:
A receiver-in-ear assembly (100) comprises: a housing (104) including a cavity (102a) extending through the housing (104); an optical transducer (201) being mounted in the cavity (102a) within a thickness of the housing (104), the optical transducer (201) being mounted on a circuit board layer (208) such that a spacing (207) exists between a side of the optical transducer (201) and a sidewall (216) of the cavity (102a); the circuit board layer (208) extending underneath the housing (104) and touching the housing (104) such that the optical transducer (201) is held within the cavity (102a) without touching the housing (100); and a protective substance (210) forming a shield over the optical transducer (201) and the cavity (102a), the protective substance (210) configured to affect a field of view of the optical transducer (201).
摘要:
The present invention relates to a micro-electromechanical transducer comprising one or more moveable members, and a viscoelastic substance having a predetermined viscoelasticity, the viscoelastic substance being adapted to influence the response of the transducer in a predetermined manner. The micro-electromechanical transducer of the present invention may include a MEMS transducer, such as a MEMS microphone, a MEMS vibration sensor, a MEMS acceleration sensor, a MEMS receiver.
摘要:
The invention relates to a microphone (10). A first (14a) and a second (14b) diaphragm are provided in a housing (12). A first chamber (24a) is delimited by a first side of the first diaphragm (14a) and an inner surface of the housing (12). A first opening (18a) extends from the first chamber (24a) to surroundings of the microphone (10). A second chamber (24b) is delimited by a first side of the second diaphragm (14b) and an inner surface of the housing (12). A second opening (18b) extends from the second chamber (24b) to the surroundings. A common chamber (22) is delimited by a second side of the first diaphragm (14a), a second side of the second diaphragm (14b) and an inner surface of the housing (12). A third opening (20) extends from the common chamber (22) to the surroundings.
摘要:
A microphone is constructed to be more tolerant to a wide range of relative humidity conditions without adversely affecting the performance of the microphone. The microphone includes a housing with a sound port for receiving sound and an electret assembly for converting the sound into an output signal. The electret assembly includes a diaphragm and a backplate. The backplate is made of at least two layers, usually polymeric layers. The first layer of material has a first hygroscopic coefficient and a second layer of material has a second hygroscopic coefficient. The first and second layers cause the backplate to bend in response to higher humidity conditions, thereby minimizing the adverse effects on microphone performance caused by characteristic changes in the diaphragm at the higher humidity conditions. Further, to minimize the charge degradation due to physical contact with other materials, the charged layer may include a protective layer thereon to inhibit physical contact with the charged layer.