Abstract: Provided is an internal combustion engine having an oil circulating structure wherein oil used to lubricate valve operating members in the cylinder head drops onto an oil pan, and the oil accumulated therein is drawn up to the cylinder head again. Each on corners of the squire bottom face inside the cylinder head of the internal combustion engine, an oil dropping hole is provided to allow the oil used to lubricate valve operating members to flow thereinto. Also provided is an oil channel communicating with one or more of the oil dropping hole at the bottom thereof to guide the oil toward the driving gear transmitting the driving force of the engine.

Abstract: Provided is an internal combustion engine having an oil circulating structure wherein oil used to lubricate valve operating members in the cylinder head drops onto an oil pan, and the oil accumulated therein is drawn up to the cylinder head again. Each on corners of the squire bottom face inside the cylinder head of the internal combustion engine, an oil dropping hole is provided to allow the oil used to lubricate valve operating members to flow thereinto. Also provided is an oil channel communicating with one or more of the oil dropping hole at the bottom thereof to guide the oil toward the driving gear transmitting the driving force of the engine.

Abstract: Provided is an abnormality prediction system and an abnormality prediction method that are capable of predicting an abnormality occurring in a die that is used in a press machine.

Abstract: A mobile unit control device includes an imaging unit, an identification unit, and a control unit. When installed on a mobile unit, the imaging unit captures at least a portion of the surroundings of the mobile unit to obtain an image thereof. When the image captured by the imaging unit includes a figure of a person, the identification unit determines a trunk of the person in the figure of the person as a representative point. The control unit controls a movement of the mobile unit on the basis of the position of the representative point determined by the identification unit in the image.

Abstract: A communication device includes a processor configured to execute speech processing using a first speech function of providing radio device service requiring a predetermined operation for transmitting transmission sound during speech or speech processing using a second speech function of providing telephone service requiring no predetermined operation for transmitting transmission sound during speech, a rectangular parallelepiped-shaped housing formed by joining a front case and a rear case, a physical keypad mounted at an outer wall surface side of the front case, a speaker storage part provided at an inner wall surface side of the front case, and a speaker mounted on the speaker storage part with an orientation capable of emitting sound to the inner wall surface side in such a manner as to face an abutment surface between the front case and the physical keypad.

Abstract: A communication device includes a processor configured to execute speech processing using a first speech function of providing radio device service requiring a predetermined operation for transmitting transmission sound during speech or speech processing using a second speech function of providing telephone service requiring no predetermined operation for transmitting transmission sound during speech, a rectangular parallelepiped-shaped housing formed by joining a front case and a rear case, a physical keypad mounted at an outer wall surface side of the front case, a speaker storage part provided at an inner wall surface side of the front case, and a speaker mounted on the speaker storage part with an orientation capable of emitting sound to the inner wall surface side in such a manner as to face an abutment surface between the front case and the physical keypad.

Abstract: A mobile unit control device includes an imaging unit, an identification unit, and a control unit. When installed on a mobile unit, the imaging unit captures at least a portion of the surroundings of the mobile unit to obtain an image thereof. When the image captured by the imaging unit includes a figure of a person, the identification unit determines a trunk of the person in the figure of the person as a representative point. The control unit controls a movement of the mobile unit on the basis of the position of the representative point determined by the identification unit in the image.

Abstract: Provided is an abnormality prediction system and an abnormality prediction method that are capable of predicting an abnormality occurring in a die that is used in a press machine.

Abstract: A cover panel is located on a front surface of an electronic device. A piezoelectric vibration element is provided on an inner main surface of the cover panel. A drive section causes the piezoelectric vibration element to vibrate based on a sound signal. The electronic device has a microphone hole located in a part other than the cover panel.

Abstract: A cover panel is located on a front surface of an electronic device. A piezoelectric vibration element is provided on an inner main surface of the cover panel. A drive section causes the piezoelectric vibration element to vibrate based on a sound signal. The electronic device has a microphone hole located in a part other than the cover panel.

Abstract: A mobile phone that is an electronic device includes a bottom housing including a first bottom subhousing. On the first bottom subhousing a rib is provided so as to surround a position where an earphone jack is to be provided and be in with a substrate on which the earphone jack is to be provided. This rib prevents liquid from infiltrating into the bottom housing. Connection terminals of the earphone jack are each connected with other components of the mobile phone such as a CPU via an inner layer of the substrate.

Abstract: A cover unit that is provided to an electronic device as a waterproof cover, the cover unit covering one or more openings formed in a housing of the electronic device with respect to a plurality of speakers, and comprising a frame member having a plurality of windows disposed therein, the windows facing the speakers in one-to-one correspondence, and a waterproof film covering the windows. Having such a structure, the cover unit covers the one or more openings formed in the housing, and has an advantageous effect of suppressing at least one of (i) an increase in parts composing an electronic device and (ii) an increase in distortion of sound. Additionally, since a vibration unit faces a corresponding one of the speakers, the unnecessary vibration of the vibration unit is inhibited, which leads to a reduction in the distortion of sound.

Abstract: A foldable mobile phone relating to the present invention includes: a first housing that includes a speaker, a receiver and a receiver hole; and a second housing that includes a microphone and a microphone hole, the receiver hole and the microphone hole each being covered with a waterproof film, and the waterproof film that covers the receiver hole facing the microphone hole in a closed state, and the mobile phone comprises: a low-pass filter that is connected to an output terminal of the microphone and has a cut-off frequency of 1 kHz; and an echo canceller that is connected to an output terminal of the low-pass filter, and is operable to cancel, from components of a signal output from the low-pass filter, components of a signal that has been input to the speaker.

Abstract: A cover unit that is provided to an electronic device as a waterproof cover, the cover unit covering one or more openings formed in a housing of the electronic device with respect to a plurality of speakers, and comprising a frame member having a plurality of windows disposed therein, the windows facing the speakers in one-to-one correspondence, and a waterproof film covering the windows. Having such a structure, the cover unit covers the one or more openings formed in the housing, and has an advantageous effect of suppressing at least one of (i) an increase in parts composing an electronic device and (ii) an increase in distortion of sound. Additionally, since a vibration unit faces a corresponding one of the speakers, the unnecessary vibration of the vibration unit is inhibited, which leads to a reduction in the distortion of sound.

Abstract: A mobile phone 100 that is an electronic device includes a bottom housing 120 including a first bottom subhousing. On the first bottom subhousing 121, a rib 200 is provided so as to surround a position where an earphone jack 130 is to be provided and be in contact with a substrate 123 on which the earphone jack 130 is to be provided. This rib 200 prevents liquid from infiltrating into the bottom housing 120. Connection terminals of the earphone jack 130 are each connected with other components of the mobile phone 100 such as a CPU via an inner layer of the substrate 123.