Patent application number | Description | Published |
20110063585 | PROJECTOR - A projector includes: a light emitting device; a light modulation device adapted to modulate a light beam emitted from the light emitting device in accordance with image information; and a projection device adapted to project the image formed by the light modulation device, wherein the light emitting device includes a light emitting element formed of a super luminescent diode, and adapted to emit light when flowing current through an active layer sandwiched between a first cladding layer and a second cladding layer, and a base supporting the light emitting element, and provided with a first reflecting surface and a second reflecting surface each adapted to reflect the light emitted from the light emitting element, the light emitting element has a configuration of emitting the light from a first end surface and a second end surface, a direction of first outgoing light emitted from the first end surface of the light emitting element and a direction of second outgoing light emitted from the second end surface of the light emitting element are opposite to each other, the first reflecting surface reflects the first outgoing light, the second reflecting surface reflects the second outgoing light, and a direction of the first reflected light reflected by the first reflecting surface and a direction of the second reflected light reflected by the second reflecting surface are the same as each other. | 03-17-2011 |
20110069282 | PROJECTOR - A projector includes: a light emitter; a light modulator modulating light from the light emitter; and a projector projecting the image from the light modulator. The light emitter includes a light emitting element and an optical member. The light emitting element is a super luminescent diode having an active layer constituting first and second gain regions sandwiched between first and second cladding layers. The first gain region is tilted in a clockwise direction relative a perpendicular of a first surface of the stacked structure. The second gain region is tilted in a counterclockwise direction relative to a perpendicular of the first surface. As such, the optical member refracts the light respectively emitted from the end surfaces of the first and second gain regions on the second surface side to thereby emit light beams in the same direction. | 03-24-2011 |
20110205456 | IMAGE FORMING APPARATUS AND REAR PROJECTION DISPLAY APPARATUS - An image forming apparatus includes: a screen having a display surface; and a projector that renders an image by scanning light on the display screen, wherein the screen selects, independently in respective regions of the display surface, a light transmission state in which the light is transmitted and a light diffusion state in which the light is diffused, the screen being configured such that the region where address light is irradiated is in the light diffusion state and the region where the address light is not irradiated is in the light transmission state, and the projector scans the address light on the display surface such that an area of the display surface corresponding to an image displayed on the display surface changes to the light diffusion state. | 08-25-2011 |
20110245685 | BLOOD VESSEL DISPLAY DEVICE - A blood vessel display device includes: a detection unit that scans body tissue with laser light for detection and detects reflected light from an irradiated part of the body tissue to which the laser light for detection has been irradiated; an image data generating unit that detects a surface shape of the irradiated part and the arrangement of blood vessels, which are present in a superficial layer of the irradiated part, on the basis of a detection result of the detection unit and generates image data of an image for visualizing the blood vessels displayed on the irradiated part; and a display unit that displays an image for visualizing the blood vessels on the irradiated part by scanning the irradiated part with laser light for display on the basis of the image data generated by the image data generating unit. | 10-06-2011 |
20130141700 | PROJECTOR WITH SUPER LUMINESCENT DIODE - A projector includes: a light emitting device; a light modulation device adapted to modulate a light beam emitted from the light emitting device; and a projection device adapted to project the image formed by the light modulation device, wherein the light emitting device includes a light emitting element formed of a super luminescent diode, and adapted to emit light, and a base supporting the light emitting element with first and second reflecting surfaces to reflect the light emitted from the light emitting element. The light emitting element emits the light from first and second end surfaces. Directions of first and second outgoing light respectively emitted from the first and second end surfaces are opposite to each other. Directions of the first and second reflected light respectively reflected by the first and second reflecting surfaces are the same as each other. | 06-06-2013 |
20130342815 | PROJECTOR - A projector includes: a light emitter; a light modulator modulating light from the light emitter; and a projector projecting the image from the light modulator. The light emitter includes a light emitting element and an optical member. The light emitting element is a super luminescent diode having an active layer constituting first and second gain regions sandwiched between first and second cladding layers. The first gain region is tilted in a clockwise direction relative a perpendicular of a first surface of the stacked structure. The second gain region is tilted in a counterclockwise direction relative to a perpendicular of the first surface. As such, the optical member refracts the light respectively emitted from the end surfaces of the first and second gain regions on the second surface side to thereby emit light beams in the same direction. | 12-26-2013 |
20140049831 | IMAGE DISPLAY DEVICE AND HEAD-MOUNTED IMAGE DISPLAY DEVICE - A head mounted image display device includes: a frame including a front section having a nose pad; a light transmitter supported by the front section and allowing visible light to pass therethrough; an optical scanner that receives signal light modulated according to an image signal and made incident thereon and that two-dimensionally scans the incident signal light toward the light transmitter; a half mirror on a surface on which the signal light from the optical scanner is incident and having a curved surface that reflects the signal light; and a condensing lens on an optical axis between the optical scanner and the half mirror and condensing the signal light from the optical scanner between the optical scanner and the half mirror to convert the signal light reflected by the half mirror into parallel light. | 02-20-2014 |
Patent application number | Description | Published |
20090265790 | CONTENT PROVIDING SYSTEM, CONTENT PROVIDING SERVER, INFORMATION PROCESSING APPARATUS, AND COMPUTER PROGRAM - A content providing system is disclosed, which includes: a content providing server that is capable of delivering content data and information related thereto through a communication network; and a client that is capable of downloading the content data and the information related thereto through the communication network, wherein a management unit manages meta information of the respective content data as content item information, manages one or plural pieces of content item information as content program information in association with one another, and manages one or plural pieces of content program information as a content program catalogue, one content data and meta information thereof can be referred to in plural pieces of content item information, one piece of content item information can be referred to in plural pieces of content program information, and one piece of content program information can be referred to in plural content program catalogues, and when a term of availability of the content program catalogue has expired, the management unit deletes content program information included in the content program catalogue and/or content item information included in the content program information and/or content data included in the content item information. | 10-22-2009 |
20100196747 | BATTERY PACK - A battery pack having a protection circuit to detect an overcharge, overdischarge, or overcurrent condition of a secondary battery and to turn off a switch element on a path connecting between the secondary battery and either a load or a charger device includes a series-connected thermistor and resistor disposed in proximity of the secondary battery and connected in parallel to the secondary battery, and a first comparator in the protection circuit to compare a voltage at a junction point between the thermistor and the resistor with a first reference voltage corresponding to a first predetermined temperature, wherein the protection circuit turns off the switch element by an output signal of the first comparator upon an exceeding of the first predetermined temperature by temperature of the secondary battery. | 08-05-2010 |
20100201327 | BATTERY PACK - In a battery pack including a protection circuit, a series circuit of a thermistor and a resistor is disposed in a vicinity of a secondary battery and connected in parallel with the secondary battery. A connection detecting circuit is disposed to detect connection of a charging device to the battery pack. A comparator is disposed to compare a voltage of a junction point of the thermistor and the resistor with a reference voltage corresponding to a predetermined temperature. A gate circuit is disposed to activate an output signal of the comparator only when the connection of the charging device is detected. The protection circuit is arranged so that, when a temperature of the secondary battery exceeds the predetermined temperature, a switch element is turned off in accordance with the output signal of the comparator activated. | 08-12-2010 |
20130026997 | BATTERY PACK - In a battery pack, an overcharge detecting circuit compares a voltage between a positive electrode and a negative electrode of a secondary battery with a threshold voltage to detect an overcharge of the secondary battery, and turns off a switching element. A series circuit including a thermistor and a resistor is arranged near the secondary battery and connected in parallel to the secondary battery. A comparator compares a voltage at a junction point of the thermistor and the resistor with a reference voltage corresponding to a predetermined temperature. In response to an output signal of the comparator, a changing unit changes the threshold voltage to a first value when a temperature of the secondary battery is below the predetermined temperature, and changes the threshold voltage to a second smaller value when the temperature of the secondary battery is above the predetermined temperature. | 01-31-2013 |
20140042223 | INFORMATION PROCESSING SYSTEM - An information processing system, an information processing method for use with the system, an information providing system, and information providing method for use with the system, an information processing apparatus, an information processing method for use with the apparatus, a doll, an object, a program storage medium, and a program for authenticating users reliably are provided. A user acquires beforehand a doll called Pochara the Good Friend incorporating an IC chip that stores a user ID for authenticating the user. When the user mounts the doll on a platform connected to a personal computer, the user ID is read from the IC chip by a reader housed in the platform and transmitted over the Internet to a Pochara service server. The server has a Pochara database holding personal information about users of the service. The transmitted user ID is checked against the personal information in the database for authentication. This invention applies advantageously to servers offering services through networks. | 02-13-2014 |
20150048171 | INFORMATION PROCESSING SYSTEM - An information processing system, an information processing method for use with the system, an information providing system, and information providing method for use with the system, an information processing apparatus, an information processing method for use with the apparatus, a doll, an object, a program storage medium, and a program for authenticating users reliably are provided. A user acquires beforehand a doll called Pochara the Good Friend incorporating an IC chip that stores a user ID for authenticating the user. When the user mounts the doll on a platform connected to a personal computer, the user ID is read from the IC chip by a reader housed in the platform and transmitted over the Internet to a Pochara service server. The server has a Pochara database holding personal information about users of the service. The transmitted user ID is checked against the personal information in the database for authentication. This invention applies advantageously to servers offering services through networks. | 02-19-2015 |
Patent application number | Description | Published |
20100123437 | OVERCURRENT PROTECTION CIRCUIT OF A RECHARGEABLE BATTERY - An overcurrent protection circuit of a rechargeable battery includes a current detection terminal and an overcurrent return resistor connecting part. A voltage converted from a discharge current of the rechargeable battery is detected at the current detection terminal. The overcurrent return resistor connecting part connects the current detection terminal to overcurrent detection resistors having different resistances in accordance with a level of the voltage detected at the current detection terminal when the voltage detected at the current detection terminal is equal to or greater than a discharge overcurrent detection voltage and a discharge overcurrent state in which an overcurrent flows from the rechargeable battery is detected. | 05-20-2010 |
20100141215 | RECHARGEABLE BATTERY PROTECTION INTEGRATED CIRCUIT DEVICE, RECHARGEABLE BATTERY PROTECTION MODULE USING THE RECHARGEABLE BATTERY PROTECTION INTEGRATED CIRCUIT DEVICE, AND BATTERY PACK - A rechargeable battery protection integrated circuit device, includes a short circuit detecting circuit configured to convert a discharge electric current of a rechargeable battery to a voltage value and detect a short circuit state of the rechargeable battery when the converted voltage value is equal to or greater than a designated short circuit detecting voltage; a discharge control terminal configured to output a control signal when the short circuit state is detected by the short circuit detecting circuit, the control signal being configured to stop a discharge of the rechargeable battery; and an overcharge detecting circuit configured to detect an overcharge of the rechargeable battery, wherein the short circuit detecting circuit includes a short circuit detecting voltage change part, the short circuit detecting voltage change part being configured to change the short circuit detecting voltage when the overcharge is detected by the overcharge detecting circuit. | 06-10-2010 |
20110221499 | COUNTER CIRCUIT AND PROTECTION CIRCUIT - A counter circuit is provided that can switch delay times by use of a simple circuit configuration. A counter circuit includes plural stages of flip flops connected in cascade, in which a flip flop in a first stage receives a clock from an oscillator as an input signal, and a flip flop in a given stage after the first stage receives a Q output of a preceding stage as an input signal, wherein all or part of the plural stages of flip flops receive a mode signal, and wherein each of the plural stages of flip flops divides by 2 a frequency of the received input signal for output as a Q output when the mode signal indicates a normal delay mode, and each stage of the flip flops that receives the mode signal allows through passage of the received input signal for output as a Q output when the mode signal indicates a delay shortened mode. | 09-15-2011 |
20120112755 | BATTERY VOLTAGE MONITORING CIRCUIT - A battery voltage monitoring circuit includes a first power supply terminal to be connected to the positive terminal of a battery pack having rechargeable cells connected in series; a first supply voltage sensing terminal to be connected to the positive terminal of the battery pack; a first resistor connected between the first power supply terminal and the first supply voltage sensing terminal; a second supply voltage sensing terminal to be connected to the negative terminal of a first rechargeable cell of the rechargeable cells, the first rechargeable cell being on the positive terminal side of the battery pack and connected to the positive terminal of the battery pack; a second resistor connected between the second supply voltage sensing terminal and the first power supply terminal; and a first comparator configured to compare a voltage at the first power supply terminal and a voltage at the first supply voltage sensing terminal. | 05-10-2012 |
20120161693 | FLYING CAPACITOR TYPE VOLTAGE DETECTING CIRCUIT AND BATTERY PROTECTION INTEGRATED CIRCUIT - A voltage-detecting circuit includes a flying capacitor; a first switch circuit allowing plural electric cells connected in series, so that polarity of voltage across electrodes of the flying capacitor charged by one of the electric cells is opposite to polarity of voltage across the electrodes of the flying capacitor charged by an adjacent one of the electric cells; a second switch circuit discharging the flying capacitor; an output circuit outputting a signal depending on the voltage across the flying capacitor; a shield arranged around the flying capacitor electrodes to substantially equalize parasitic capacitances between the shield and each of the electrodes; and a voltage-controlling circuit equalizing voltage between one of the electrodes of the flying capacitor and the shield when charging the flying capacitor, with voltage between another one of the electrodes of the flying capacitor and the shield when discharging the flying capacitor. | 06-28-2012 |
20120206105 | CHARGE-DISCHARGE CONTROL CIRCUIT, SEMICONDUCTOR INTEGRATED CIRCUIT, METHOD OF CONTROLLING CHARGING AND DISCHARGING, AND CHARGING AND DISCHARGING CONTROL PROGRAM - A charge-discharge control circuit includes a cell balance detection circuit that detects that a voltage of a cell reaches a predetermined voltage; a memory circuit that stores the cell that reaches the predetermined voltage first among plural of the cells; bypass circuits respectively connected to the plural cells in parallel, each of the bypass circuits including a switch unit for bypassing the current that flows through the corresponding cell when charging; and a control circuit that controls the switch units, wherein the control circuit controls the switch unit based on the cell stored in the memory circuit so that an ON/OFF status of the switch unit is maintained from a start to an end of a next charging operation subsequent to a charging operation during which the cell is stored in the memory circuit. | 08-16-2012 |
20120236453 | TRANSMITTER/RECEIVER CIRCUIT FOR PROTECTION CIRCUIT - A transmitter/receiver circuit includes secondary batteries connected in series, a first protection circuit in a high voltage side of the secondary batteries and including a transmitter circuit increasing a voltage of a binary signal to a level that is a first voltage higher than an anode voltage of a first secondary battery connected to the first protection circuit, and a second protection circuit in a low voltage side of the secondary batteries and including a receiver circuit that receives the binary signal from the transmitter circuit via a wiring and including a shift part decreasing the voltage of the binary signal to a level that is a second voltage lower than a cathode voltage of a second secondary battery connected to the second protection circuit, and a detection part that determines that the wiring is disconnected when the voltage of the binary signal is lower than a reference voltage. | 09-20-2012 |
20130063090 | BATTERY PROTECTION CIRCUIT AND BATTERY PROTECTION DEVICE, AND BATTERY PACK - A battery protection circuit to protect secondary batteries coupled in parallel, includes an overdischarge detection part provided for each of the secondary batteries and to output an abnormality signal when an overdischarge is detected from a corresponding one of the secondary batteries, an overcurrent detection part provided for each of the secondary batteries and to output an abnormality signal when an overcurrent is detected from a corresponding one of the secondary batteries, and a discharge control part to prohibit a discharge of at least one secondary battery when the abnormality signal is output from at least one of the overdischarge detection part and the overcurrent detection part. | 03-14-2013 |
20140253041 | CHARGE AND DISCHARGE CONTROL CIRCUIT, AND CHARGE AND DISCHARGE CONTROL METHOD - In a charge and discharge control circuit, a mode control part manages a normal mode in which voltages at a power terminal and an overcurrent detection terminal are monitored, a time-shortening mode in which predetermined delay times for detecting an overcharge, an overdischarge, and an overcurrent are shortened, and a protection mode in which a signal to stop a charge current or a discharge current is output when an abnormality is detected in the normal mode. A transition is made from the normal mode to the time-shortening mode when the voltage at the power terminal exceeds a predetermined value, and a transition is made from the time-shortening mode to the protection mode when one of the overcharge, overdischarge, and overcurrent is detected. | 09-11-2014 |
Patent application number | Description | Published |
20090160405 | Battery Pack - In a battery pack, an overcharge detecting circuit compares a voltage between a positive electrode and a negative electrode of a secondary battery with a threshold voltage to detect an overcharge of the secondary battery, and turns off a switching element. A series circuit including a thermistor and a resistor is arranged near the secondary battery and connected in parallel to the secondary battery. A comparator compares a voltage at a junction point of the thermistor and the resistor with a reference voltage corresponding to a predetermined temperature. In response to an output signal of the comparator, a changing unit changes the threshold voltage to a first value when a temperature of the secondary battery is below the predetermined temperature, and changes the threshold voltage to a second smaller value when the temperature of the secondary battery is above the predetermined temperature. | 06-25-2009 |
20090202890 | BATTERY PACK - A battery pack including a protection circuit configured to detect over-charge, over-discharge and over-current of a rechargeable battery to turn off a switch element, the switch element provided at a wire provided between the rechargeable battery and a load circuit or a charging device; a series circuit of a thermistor and a resistor, the series circuit provided in parallel to the rechargeable battery, the thermistor thermally connected to the rechargeable battery; and an abnormal temperature detection unit provided in the protection circuit, wherein the abnormal temperature detection unit operates the switch to be in an off state when the temperature of the rechargeable battery is higher than a predetermined temperature, and when a voltage of the wire is higher than a threshold voltage of a forward drop voltage of a body diode in the switch, the abnormal temperature detection unit operates the switch to be in an on state. | 08-13-2009 |
20100090652 | Battery Pack Having Protection Circuit for Secondary Battery - A battery pack has first through third external terminals connected to positive and negative power supply terminals and a voltage detection terminal, respectively. A secondary battery is connected between the first external terminal and the third external terminal. A protection circuit controls ON/OFF of first and second switching elements provided on a wiring between the secondary battery and a load or a charge device by detecting an overcharge, an overdischarge and an overcurrent of the secondary battery. A first thermistor is connected between the second external terminal and the third external terminal. A series circuit containing a second thermistor and a resistor is provided in parallel to the secondary battery. A third switching element is connected between the second external terminal and the third external terminal. The protection circuit turns on the third switching element and short-circuits between the second external terminal and the third external terminal when a detection is made by the second thermistor that a temperature of the secondary battery exceeds a predetermined temperature. | 04-15-2010 |
20100092844 | Battery Pack - A battery pack has a secondary battery, first and second switch devices provided between the secondary battery and a load or a charging unit, a protection circuit detecting an overcharge, an overdischarge or an overcurrent of the secondary battery and controlling turning on and off of the first and second switch devices, a series circuit of a resistor and a thermistor disposed in the vicinity of the secondary battery and connected in parallel with the secondary battery, a comparator which compares a voltage at a connection point between the thermistor and the resistor with a reference voltage corresponding to a predetermined temperature inside the protection circuit, and a third switch device connected between the resistor and a negative electrode of the secondary battery. The protection circuit turns off the first switch device and the third switch device when an overdischarge of the secondary battery is detected. | 04-15-2010 |
Patent application number | Description | Published |
20120188613 | Image Forming Optical Element, Image Forming Optical Array, And Image Reading Device - An image forming optical element is provided, in which a first lens, a second lens, and a light guiding unit that leads the light input from the first lens, to the second lens, the light guiding unit has a curved shape of a first curve portion and a second curve portion from the first lens to the second lens, a first reflection face that reflects the light input from the first lens, to the second curve portion, is formed on an outer peripheral face of the first curve portion, a second reflection face that reflects the reflected light to the second lens is formed on an outer peripheral face of the second curve portion, the light input to the first lens travels in the transparent medium until reading the second lens, is output from the second lens, and then forms an image at magnification of erection equal-magnification. | 07-26-2012 |
20120188615 | Image Forming Optical Element, Image Forming Optical Array, And Image Reading Device - An image forming optical element is provided, in which an incident unit having a first lens face to which a light beam output from an original document (object) is input, an output unit having a second lens face outputting the light beam, and a bent unit connecting the incident unit and the output unit at an angle are integrally formed into a transparent medium. The bent unit has a reflection face reflecting the incident light beam input to the first lens face and guiding the light beam to the second lens face. The incident light beam is collected at any of the incident unit, the bent unit, and the output unit to form an intermediate image of the object, and the intermediate image is formed on the output side of the second lens face to form an erection image of the object. | 07-26-2012 |
20120188616 | Image Reading Device - An image reading device includes a light source; a light guiding member; an imaging optical system that reflects the light, which faces a first direction from the object, in a second direction intersecting the first direction by a reflective plane disposed in the first direction of the object, that makes the light, which is reflected by the reflective plane, converge toward the second direction by an emission portion disposed in the second direction of the reflective plane, and that images an erect equal-magnification image of the object in the second direction of the emission portion; and an optical sensor that is disposed in the second direction of the emission portion of the imaging optical system, and detects the erect equal-magnification image that is imaged by the imaging optical system, in which the light guiding member is disposed at an object side of the emission portion in the first direction. | 07-26-2012 |
20120200900 | Imaging Optical Array And Image Reading Device - An imaging optical array includes a plurality of imaging optical elements, which is arranged in a line in an arrangement direction, each including incidence lens to which light from an object is incident, an emission lens that emits light, and a light guiding portion that connects the incidence lens and the emission lens and that guides the light incident from the incidence lens to the emission lens, and which images an erect equal-magnification image of an object by the incidence lens and the emission lens, in which the plurality of imaging optical elements is integrally formed of a transparent medium in a state where the respective light guiding portions of the plurality of imaging optical elements are arranged in a line in the arrangement direction, and a void between the light guiding portions of the imaging optical elements adjacent to each other is empty in the transparent medium. | 08-09-2012 |
Patent application number | Description | Published |
20130207535 | Phosphor, Manufacture Thereof, Light-Emitting Device, and Image Display Device - Provided is a chemically-thermally stable phosphor having different emission characteristics from the conventional and exhibiting high emission intensity with an LED of 470 nm or less. A phosphor of the present invention includes A, D, E, and X elements (A is one or more kinds selected from Mg, Ca, Sr and Ba; D is one or more kinds selected from Si, Ge, Sn, Ti, Zr and Hf; E is one or more kinds selected from B, Al, Ga, In, Sc, Y and La; and X is one or more kinds selected from O, N and F), and an inorganic crystal of a crystal designated by Sr | 08-15-2013 |
20130207538 | Phosphor, Manufacture Thereof; Light-Emitting Device, and Image Display Device Utilizing Phosphor - Provided is a chemically and thermally stable phosphor having different emission characteristics than the conventional phosphor and exhibiting high emission intensity if combined with an LED of 470 nm or less. The phosphor of the present invention is represented by a composition formula: M | 08-15-2013 |
20150070875 | Phosphor, Method For Manufacturing Same, Light Emitting Device, and Image Display Device - A chemically and thermally stable phosphor having unconventional light emitting properties and high light emitting intensity with an LED of 470 nm or less, includes an inorganic compound comprising: a crystal designated by A | 03-12-2015 |