Abstract: An ink jet head includes four plate-like piezoelectric bodies each having a primary surface having a plurality of parallel grooves formed therein in a predetermined direction, a end surface on which a one end of the groove is open, and an electrode formed on the inner surface of the groove. These piezoelectric bodies are stacked one upon the other on the primary surfaces under the state that the openings of these piezoelectric bodies are allowed to face the same direction, and that the primary surfaces of these piezoelectric bodies are allowed to face the same direction. Further, formed is a common liquid supply path allowing the plural grooves of the piezoelectric bodies to communicate with each other to form ink flow path.

Abstract: A computer reads a voice speech recognition program from a first recording medium, and reads voice data from a second recording medium, and causes a CPU in the computer to recognize speech represented by the read voice data according to the speech recognition program, convert the result of speech recognition into text data, and display the converted text data on a display unit. A check mark button used by a speaker designates a portion of voice data, which is input through a microphone, corresponding to an unnecessary word or the like. The portion of the voice data in which a check mark is inscribed is not regarded as an object of speech recognition. Only the other portion of voice data in which the check mark is not inscribed is regarded as an object of speech recognition, and speech recognition is thus carried out. Furthermore, the sound level of a voice portion of voice data is rated. The gain of the voice data is adjusted according to the rated level.

Abstract: A voice recording/reproducing apparatus includesan A/D converting circuit for converting an input analog voice signal into a digital signal;a digital signal processing circuit for coding the converted digital signal in a predetermined format and decoding the coded voice data;a recording medium for storing the coded voice data;a buffer memory;a D/A converter for converting the decoded digital signal stored in the recording medium into an analog voice signal;an operation unit for setting a predetermined mode; anda control circuit for performing a predetermined process for reducing noise in a reproducing operation to the voice data obtained from time a predetermined period of time before the operation unit recognizes that a recording stop operation is performed by the operation unit during a recording operation to time when the operation unit recognizes that the recording stop operation is performed whereby the noise due to a stop operation is reduced when the voice data is in said buffer memory and then transfe

Abstract: A head-mounted image display apparatus which uses two or more image display devices, and which is compact and lightweight and yet enables observation of a clear image over the entire observation image field at a wide field angle and high resolution. The image display apparatus includes two image display devices (5 and 6) and two ocular optical systems (3 and 4) for projecting, respectively, images formed by the two image display devices (5 and 6) as enlarged virtual images in front of one common eyeball (7) of an observer and for leading the projected images to the eyeball (7). When the two ocular optical systems are defined as a first ocular optical system (3) and a second ocular optical system (4) in order from the observer side, the first and second ocular optical systems (3 and 4) have concave mirrors (12 and 22), respectively. These reflecting surfaces are tilted or decentered with respect to an observer's visual axis (2).

Abstract: An endoscope apparatus according to the present invention includes a warping velocity control device which receives an angle of warp detected by an angle detection device and a value of an electric current realized at this angle of warp and detected by an electric current detection device. The control device makes comparisons between the angle of warp and the value of the electric current and data about a normal state stored in a storage device. If the result is larger than data for the normal state by a predetermined value, the warping velocity is lowered while a discrimination is made that an abnormal state (the warp-enabled portion has come in contact with the body wall) takes place. Additionally, the apparatus could include a time detecting device for detecting a time in which an electric quantity supplied to a drive means is larger than a predetermined time. The warping velocity control device controls the warping velocity according to the comparison made by the time detecting device.

Abstract: An endoscope cover system endoscope to be used in an endoscope inspection including an endoscope having an elongate inserted part provided with a curvable curving part and an operating part provided with a curving operating knob curving operating the curving part and a channeled endoscope cover having an inserted part cover provided with an endoscope inserting channel through which the inserted part is inserted and such fluid tube path through which a fluid flows as an air feeding tube path so that, when the curving part is curved close to the maximum curvature angle in the maximum curvature angle direction by operating the curving operating knob, the fluid tube path within the inserted part cover will be curved and twisted to move outside in the maximum curvature angle direction.

Abstract: An operating lever apparatus used in an electric appliance to operate in accordance with electric signals produced by signal generator, comprises a first base plate, a second base plate disposed parallel to the first base plate at a given distance therefrom, an operating lever disposed between the first and second base plates so as to be able to move along the same between first and second positions, whereby the signal generator is caused to produce an electric signal when the operating lever is located in the second position, holding member for holding the operating lever in a position just before the second position, and a driving member disposed so as to be able to move along the first and second base plates between first and second positions in a direction to intersect the moving direction of the operating lever, and having a guide bore for guiding the operating lever in movement from the first position to the position just before the second position when the driving member is located in the first positio