Back to results
US 10,382,867 B2Granted
Voice recorder
AssigneeTEAC Corporation
InventorsHironao Ishizaki, Taishi Toyono
Life of this patent
Estimating the term…
Abstract
The voice recorder includes a right-and-left pair of microphones. Each microphone is fixed to a holder that is rotatable about a rotation axis, and a sound-collection axis of each microphone is tilted to the rotation axis. Turning each holder by 180 degrees allows each microphone to change over between an inward position where the sound-collecting axes SAX of the microphones intersect and an outward position where the sound-collecting axes do not intersect. Each microphone is placed offset from the rotation axis on each holder in such a direction that the sound-collecting axes are spaced apart from each other in a height-direction (Z-direction) while the microphones are in the inward position.
Claims12
A voice recorder comprising:
- a body section;
- a pair of microphones, including a right microphone and a left microphone, each having a diaphragm to collect voices, wherein a sound-collecting axis perpendicular to the diaphragm extends in an axial direction of each of the microphones;
- and
- two holders placed side by side on the body section, the holders being capable of turning on respective rotation axes which are parallel to each other in a direction perpendicular to a front surface of the body section, the holders holding the microphones respectively with each sound-collecting axis tilted from the rotation axis, to change the microphones between an inward position in which the sound-collecting axes intersect each other and an outward position in which the sound-collecting axes do not intersect, by turning the microphones 180 degrees from the inward position to the outward position, wherein
- the microphones are placed offset from the respective rotation axes on the holders such that, in the inward position, the sound-collecting axes are spaced apart from each other in a vertical direction parallel to a vertical plane which is perpendicular to both of the parallel rotation axes.
2 more elements
A voice recorder comprising:
- a body section;
- a pair of microphones, including a right microphone and a left microphone, each having a diaphragm to collect voices, wherein a sound-collecting axis perpendicular to the diaphragm extends in an axial direction of each of the microphones;
- and
- two holders placed side by side on the body section, the holders being capable of turning on respective rotation axes which are parallel to each other, the holders holding the microphones respectively with each sound-collecting axis tilted from the rotation axis, to change the microphones between an inward position in which the sound-collecting axes intersect each other and an outward position in which the sound-collecting axes do not intersect, by turning the microphones 180 degrees from the inward position to the outward position, wherein
- the microphones are placed offset from the respective rotation axes on the holders such that, in the inward position, the sound-collecting axes are spaced apart from each other in a vertical direction parallel to a vertical plane which is perpendicular to both of the parallel rotation axes,
- wherein each sound-collecting axis is parallel to a horizontal plane perpendicular to the vertical plane in the inward position and in the outward position,
- wherein the holders are staggered such that the rotation axes are spaced apart from each other in the vertical direction,
- wherein, in the vertical plane, each microphone has the same offset distance which is a distance from the rotation axis of one holder to the sound-collecting axis of one microphone held on the one holder,
- wherein the offset distance OFS is a half of a distance PV that is determined by formula (1) below, assuming that PV represents the distance between the rotation axes of the holders in the vertical direction:
- PV=(D/2+D/2+C)/2 formula(1)
- wherein, D represents a diameter of each microphone and C represents a clearance between the microphones.
8 more elements
A voice recorder comprising:
- a body section;
- a pair of microphones, including a right microphone and a left microphone, each having a diaphragm to collect voices, wherein a sound-collecting axis perpendicular to the diaphragm extends in an axial direction of each of the microphones;
- and
- two holders placed side by side on the body section, the holders being capable of turning on respective rotation axes which are parallel to each other, the holders holding the microphones respectively with each sound-collecting axis tilted from the rotation axis, to change the microphones between an inward position in which the sound-collecting axes intersect each other and an outward position in which the sound-collecting axes do not intersect, by turning the microphones 180 degrees from the inward position to the outward position, wherein
- the microphones are placed offset from the respective rotation axes on the holders such that, in the inward position, the sound-collecting axes are spaced apart from each other in a vertical direction parallel to a vertical plane which is perpendicular to both of the parallel rotation axes, and
- an interlocking mechanism which interlocks the holders to cause one holder to turn as the other holder is turned.
3 more elements
Dependencies are inferred from the claim text.