Asahi Kogaku Kogyo Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Hoya Corporation

Hiroshi Kanazawa

Suguru Takishima

Isao Okuda

Shimpei Shinozaki

Mitsunori Iima

Masahiro Oono

Tadashi Minakuchi

Takeharu Shin

Yoichi Takebayashi

Akihiro Tanaka

Hiroyuki Tsuboi

Hiroyuki Chimoto

Mitsuyoshi Tachimori

Shinpei Shinozaki

Shinichi Tanaka

Hiroshi Matsuura

Masami Akamine

Kazuo Sumita

Hiroshi Nishikawa

Masaru Sakai

Akira Kumano

Takehiko Isaka

Yoshifumi Nagata

Shungo Hanashiro

Akihiro Sugiyama

Toehiyuki Kase

Yoich Takebayashi

Ryosei Honma

A metal mold including: a first inner metal mold which forms a first lens surface and a first flat surface portion of a lens; a first outer metal mold which forms a second flat surface portion; a second inner metal mold which forms a second lens surface and a third flat surface portion; and a second outer metal mold which forms a fourth flat surface portion, and wherein a first protruded portion which forms a first concaved portion on the lens is formed all around an outer periphery of the first inner metal mold, the first concaved portion serving as clearance for a burr, and a second protruded portion which forms a second concaved portion on the lens is formed all around an outer periphery of the second inner metal mold, the second concaved portion serving as clearance for a burr.

Lens forming metal mold, lens forming method and pickup device

An optical disk drive for recording information on a recording surface of an optical disk and reading information recorded in the optical disk is provided. The optical disk drive includes a spindle to rotate the optical disk and a carriage movable in parallel with a tracking direction of the optical disk. The carriage includes a laser light source to emit laser light, a collimator lens to convert divergent light into parallel light and is arranged with an optical center thereof being in a farther and offset position with respect to an optical axis of the laser light, a reflecting mirror to receive and deflect the laser light transmitted through the collimator lens in a direction perpendicular to the recording surface of the optical disk, and an objective lens to converge the laser light deflected by the reflecting mirror on a position corresponding to the recording surface of the optical disk.

Optical disk drive

A voice recognition estimating apparatus for a voice recognition apparatus, including a voice data property generator that generates properties of voice data used to determine, based on an estimation item, a feature of synthetic voice data. The estimation item is used to estimate a performance of the voice recognition apparatus. The voice data property generator includes an acquisition unit that acquires vocabulary data and unnecessary word data as the estimation item. The unnecessary word data indicates an unnecessary word inserted in the vocabulary data and an insertion position of the unnecessary word. The voice data property generator also includes a generator that generates the properties of the voice data. The properties of the voice data include selected voice quality data items, the vocabulary data and the unnecessary word data.

Voice recognition performance estimation apparatus, method and program allowing insertion of an unnecessary word

In a communication recording system using a headset with a radio communication function which transmits the first speech signal and receives the second speech signal by radio communications, the headset is provided with a time information acquisition unit for acquiring a time information indicating occurrence times of the first speech signal and the second speech signal, an information production unit for producing a recording information to be stored in which the time information is set in correspondence to the first speech signal and the second speech signal, and a memory unit for storing the recording information.

Headset with radio communication function and communication recording system using time information

A speech recognition support method in a system to retrieve a map in response to a user's input speech. The user's speech is recognized and a recognition result is obtained. If the recognition result represents a point on the map, a distance between the point and a base point on the map is calculated. The distance is decided to be above a threshold or not. If the distance is above the threshold, an inquiry to confirm whether the recognition result is correct is output to the user.

Speech recognition support method and apparatus

A noise suppress processing apparatus has a speech input section for detecting speech uttered by the speaker at different positions, an analyzer section for obtaining frequency components in units of channels by frequency-analyzing speech signals in units of speech detecting positions, a first beam former processor section for obtaining target speech components by suppressing noise in the speaker direction by filtering the frequency components in units of channels using filter coefficients, which are calculated to decrease the sensitivity levels in directions other than a desired direction, a second beam former processor section for obtaining noise components by suppressing the speech of the speaker by filtering the frequency components for the plural channels obtained by the analyzer section to set low sensitivity levels in directions other than a desired direction, an estimating section for estimating the noise direction from the filter coefficients of the first beam former processor section, and estimating the target speech direction from filter coefficients of the second beam former processor section, and a correcting section for correcting a first input direction as the arrival direction of the target speech to be input in the first beam former processor section on the basis of the target speech direction estimated by the estimating section, and correcting a second input direction as the arrival direction of noise to be input in the second beam former processor section on the basis of the noise direction estimated by the estimating section.

Noise suppress processing apparatus and method

A disk cartridge loading system for a disk drive. The loading system includes a disk cartridge holder, a drawing mechanism, a draw-in sensor, a loading sensor, and a controller. The drawing mechanism engages a partially inserted disk cartridge to fully draw the disk cartridge into the disk drive, so that the disk cartridge is accommodated in a disk cartridge holder. A holder moving mechanism moves the disk cartridge holder to a loading position, so that at least one of a data reading operation and a data writing operation can be performed. A draw-in sensor is provided to detect the partial insertion of the disk cartridge, while a loading sensor detects when the disk cartridge is located at the loading position. A control unit controls the drawing mechanism and the holder moving mechanism, based on a first signal produced by the draw-in sensor and a second signal produced by the loading sensor.

Disk loading system for a magneto-optical disk drive

A magneto-optical disk drive incorporates: a structure to mount a front panel to a frame using a cartridge loading system, using a set of linearly movable control cam plates, to draw a cartridge into a cartridge holder and then to move the cartridge holder to an operating position; a timing control system for the cartridge loading system, which includes a unitary encoder cam gear including a drive gear portion to move the cam plates to lift and lower the cartridge holder, a cam groove portion to draw a cartridge into the cartridge holder, and timing encoders portions to interrupt photo sensors; a shutter mechanism to fully close a cartridge slot with a shutter, both when the drive holds a cartridge and when empty; a magnetic head vertical positioning system to position a magnetic head base against fixed reference surfaces below and a set of resilient members above; a magnetic head horizontal positioning system to first fix the magnetic head base to rotate horizontally about a point, and then to resiliently hold the base from rotating against a rigid member; a magnetic head carriage lock mechanism to hold a magnetic head carriage in its outermost radial position; and a control system for quickly synchronizing magnetic head movement and optical head movement by first moving both heads to an outermost radial position.

Magneto-optical disk drive

A scanning optical device is provided with a light source, a polygon mirror, and a beam detector which detects the beam reaching a predetermined position in the main scanning direction. The beam detector has at least one elongated light receiving surface. The beam detector is supported by an adjustable holder. The adjustable holder is rotatable that the longitudinal direction of the light receiving surface can be varied with respect to the main scanning direction.

Scanning optical device having a rotatable adjustable holder

A coupling apparatus for coupling a light emitting element with an optical fiber, wherein the light emitting element and a coupling lens are secured within a holder. The apparatus includes a ferrule which holds the optical fiber and which is inclined at a predetermined inclination angle with respect to the optical axis of the coupling lens, and a support member which is secured to the holder and which holds the ferrule so as to move in a direction parallel with the optical axis of the coupling lens.

Coupling apparatus of light emitter and optical fiber and method for adjusting optical fiber position using the same

A position sensor is provided for a transmission deflector which has a wedge-shaped transmission prism that is rotatably supported by a yoke member through a prism holder and an elastic member, and rotates in the forward and reverse directions via electromagnetic operation. A coated reflection layer is provided on a surface of the wedge-shaped transmission prism other than the transmission portion thereof through which the light can pass. A light emitter for emitting collimated light onto the reflection layer and an incident position detector for receiving the light reflected by the reflection layer and detecting the incident position of the light thereon are provided on the yoke member or a member integral therewith.

Position sensor for transmission type optical deflector and apparatus for correcting scanning position of scanning optical system

Time series signals are recognized by extracting a multiplicity of candidate feature vectors characterizing an individual time series signal without fixing a boundary for the individual time series signal, and calculating similarity values for each of the multiplicity of candidate feature vectors and the reference patterns stored in the recognition dictionary, from which one reference pattern for which the similarity value is greater than a prescribed threshold value is selected as a recognition result. New reference patterns to be stored in the recognition dictionary are learned by artificially synthesizing signal patterns with variations for learning; extracting feature vectors for learning from the recognition results and the similarity values obtained by the recognizing step from the signal patterns with variations for learning; and obtaining new reference patterns from the feature vectors for learning extracted by the extracting step.

Time series signal recognition with signal variation proof learning

A scanning optical device includes a light source that emits a light beam; a deflector for deflecting and scanning the light beam from the light source; a scanning lens for converging the deflected light beam onto an image surface; and a mechanism for adjusting the relative position of at least one lens element of the scanning lens with respect to other lens elements of the scanning lens in an auxiliary scanning direction. Preferably, the adjustable lens element of the scanning lens be provided with an anamorphic surface having relatively larger power in the auxiliary scanning direction than in the main scanning direction. Alternatively, the above-mentioned at least one lens element may have the largest absolute value of refractive power of the lenses in the scanning lens. Further alternatively, the above-mentioned at least one lens element may be provided with a surface having the smallest absolute value of radius of curvature of all surfaces in the scanning lens.

Scanning optical device

In sound recognition apparatus of the present invention, user's utterance or a sound provided by an output section using previously stored sound waveforms is simultaneously inputted through a basic microphone of known frequency characteristics and an input microphone of unknown frequency characteristics. An analysis section respectively analyzes the frequency of the input speech through the basic microphone and the input microphone. A frequency characteristics calculation section calculates first difference data between the frequencies of the input speech of the basic microphone and the input microphone, and calculates frequency characteristics of the input microphone according to the first difference data and the frequency characteristics of the basic microphone. A frequency characteristics correction section calculates second difference data between the frequency characteristics of the input microphone and known frequency characteristics of a dictionary data microphone, and corrects input speech to be recognized through the input microphone as speech data of the frequency characteristics of the dictionary data microphone according to the second difference data. A recognition section recognizes corrected speech data by referring to a recognition dictionary storing data previously created through the dictionary data microphone.

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Tokyo, Japan

Hiroshi Kanazawa