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A vest or belt is integrally formed with tubular, pet receiving passageways which extend around the wearer's body and terminate in pocket-like chambers for feeding and retrieval.
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| Number | Title | Issue Date |
| 8149886 | Laser amplifier system and laser amplifier method A laser amplification arrangement comprising a laser medium for producing an amplified laser emission as output signal from a useful signal to be amplified and a pump source has a switching component for coupling the useful signal into the laser medium. Laser medium... | 04/03/2012 |
| 8031750 | Light transmitter and automatic power control circuit thereof A light transmitter and an auto-control circuit thereof are provided. The circuit includes a driving module and a feedback module. The driving module is coupled to the feedback module and a load. The driving module provides a driving current for driving the load. Th... | 10/04/2011 |
| 7957438 | Method and device for monitoring light A method for monitoring laser light launched into a core of a single mode fiber includes launching a portion of light directly into the cladding about the core. The cladding launched light is a known fraction of the core launched light and can be monitored by placin... | 06/07/2011 |
| 7940822 | Tracking injection seeding power based on back facet monitoring (BFM) of an injection seeded laser A method of estimating an injection power of seed light injected into an injection-seeded transmitter. A back face monitoring (BFM) response of the injection-seeded transmitter is determined, and data representative of the BFM response stored in a memory. During run... | 05/10/2011 |
| 7907649 | Bias signal generation for a laser transmitter in a passive optical network The teachings presented herein disclose a method and apparatus for controlling the optical power of a laser in a passive optical network transmitter that outputs a modulated optical signal responsive to a modulated input signal. In one or more embodiments, such a co... | 03/15/2011 |
| 7903704 | Tunable quantum cascade lasers and photoacoustic detection of trace gases, TNT, TATP and precursors acetone and hydrogen peroxide Methods and apparatus for broad tuning of single wavelength quantum cascade lasers and the use of light output from such lasers for highly sensitive detection of trace gases such as nitrogen dioxide, acetylene, and vapors of explosives such as trinitrotoluene (TNT) ... | 03/08/2011 |
| 7822083 | Laser light intensity control device, laser light intensity control method, and image forming apparatus A disclosed laser light intensity control device includes a semiconductor laser configured to scan a photoconductor by emitting laser beams and form an electrostatic latent image, a temperature detection circuit configured to detect a temperature of the semiconducto... | 10/26/2010 |
| 7769063 | Correction of power variations in laser sources The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a method of correcting output power variations in a semiconductor laser is provided. According to the method, an outpu... | 08/03/2010 |
| 7729396 | Laser diode device A laser diode device capable of obtaining high light efficiency and improving output by using an AlGaInN compound semiconductor as a material is provided. The laser diode device includes semiconductor layer which has an active layer and is made of a nitride Group II... | 06/01/2010 |
| 7729397 | Multi-variable control methods for optical packages According to one embodiment of the present invention, an optical package comprises one or more semiconductor lasers coupled to a wavelength conversion device with adaptive optics. The optical package also comprises a package controller programmed to operate the semi... | 06/01/2010 |
| 7697580 | Monitoring of a laser source with front and rear output photodetectors to determine frontal laser power and power changes over laser lifetime A power monitoring and correction to a desired power level of a laser or group of lasers utilizes two photodetectors which are employed to accurately determine the amount of output power from the front end or “customer” end of a laser or a plurality of such lase... | 04/13/2010 |
| 7535939 | Optical power control apparatus, optical beam scanning apparatus, image forming apparatus, and optical power control method An optical power control apparatus includes a changing unit which changes, a plurality of number of times, the value of a current flowing to an optical beam output apparatus, and an obtaining unit which obtains, in correspondence with each current value, a periphera... | 05/19/2009 |
| 7457332 | Laser power control unit and method for performing auto power control A laser power control unit used for controlling the laser power of an optical pick-up unit (OPU) is provided. The laser power control unit includes: at least one analog-to-digital converter (ADC) electrically coupled to the OPU for transferring a front photodiode ou... | 11/25/2008 |
| 7443896 | Optical midpoint power control and extinction ratio control of a semiconductor laser The present invention provides a method and apparatus, such as an integrated circuit, to control the optical midpoint power level and the extinction ratio of a semiconductor laser and maintain the optical midpoint power level and the extinction ratio substantially c... | 10/28/2008 |
| 7439533 | Optical module and optical communication device An optical module includes a light emitting element, a connector part that supports one end of an optical fiber and optically couples the optical fiber to the light emitting element, and a monitoring light receiving element that has a characteristic to increase phot... | 10/21/2008 |
| 7433375 | Laser trim and compensation methodology for passively aligning optical transmitter A method embodiment of the invention includes a scheme for trimming and compensation of a laser emitter in a fiber optic link. A laser emitter is provided. Also a reference optical power value is determined using data models of laser emitter performance generated by... | 10/07/2008 |
| 7423247 | Automatic control of laser diode current and optical power output An automatic power control system provides a control signal that regulates the output power of at least one laser diode. Coarse adjustment of the control signal is provided by a first means, preferably a digital variable resistor, while fine adjustment and compensat... | 09/09/2008 |
| 7401986 | Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical si... | 07/22/2008 |
| 7362784 | Laser irradiation method, laser irradiation apparatus, and semiconductor device An object of the present invention is obtaining a semiconductor film with uniform characteristics by improving irradiation variations of the semiconductor film. The irradiation variations are generated due to scanning while irradiating with a linear laser beam of th... | 04/22/2008 |
| 7359412 | Laser apparatus, laser irradiation method, and manufacturing method of semiconductor device It is an object to provide a laser apparatus, a laser irradiating method and a manufacturing method of a semiconductor device that make laser energy more stable. To attain the object, a part of laser beam emitted from an oscillator is sampled to generate an electric... | 04/15/2008 |
| 7346087 | Method for performing eye safety measurements on laser emitter devices A method of performing eye safety measurements on laser devices is disclosed. The laser is contained within a housing having a central bore. The method uses an optical detector having at least two zones to make separate measurements of both a direct power coming fro... | 03/18/2008 |
| 7332877 | Light controller A light controller capable of varying the brightness of a light emitting diode in a linear manner. The light controller may control a number of lights in a predetermined pattern or in a pattern designed by the user. A remote control may be used to control and intera... | 02/19/2008 |
| 7333521 | Method of sensing VCSEL light output power by monitoring electrical characteristics of the VCSEL Output power of light emitted from a data transmission light source is determined based upon forward voltage, forward current, ambient temperature and a factor specific to the manner in which the light source is mounted. Output power is determined with sufficient ac... | 02/19/2008 |
| 7326876 | Sequential lateral solidification device A sequential lateral solidification device, for enhancing optical characteristics of the device and for preventing damage caused by an ablation of a crystallization thin film, is disclosed. The device includes a laser light source generating a laser beam, a projecti... | 02/05/2008 |
| 7326948 | Beam modifying device, lithographic projection apparatus, method of treating a beam, and device manufacturing method A beam modifying device configured to receive an input radiation beam along a first optical axis, and configured to emit an output radiation beam along a second optical axis. The beam modifying device includes a divider disposed along the first optical axis and conf... | 02/05/2008 |
| 7321606 | Laser trim and compensation methodology for passively aligning optical transmitter A method includes a scheme for trimming and compensation for a laser emitter in a fiber optic link. Data models of laser performance are provided and used to determine a base power level. It is then confirmed that the base power level is satisfactory. If necessary, ... | 01/22/2008 |
| 7295733 | Power and encircled flux alignment A system and method for aligning optical components based on coupled optical power and encircled flux is described. In one embodiment of the invention, coupled power and encircled flux is measured corresponding to multiple locations of a first optical component rela... | 11/13/2007 |
| 7289544 | Optical module The object of the present invention is to provide an optical module for the WDM communication system, in which the oscillation wavelength is on the grid of the WDM regulation, moreover the optical output power and the oscillation wavelength can be controlled indepen... | 10/30/2007 |
| 7280574 | Circuit for driving a laser diode and method A circuit for driving a laser diode has a variable bias circuit. The variable bias circuit has an output designed to couple to the laser diode. A modulation circuit has an output designed to couple to the laser diode. ... | 10/09/2007 |
| 7280575 | Eye safety logic with compensation for transient conditions An eye safety detection circuit for use in a laser transmitter. The eye safety detection circuit shuts the laser down if the laser is emitting excessive optical energy to the point of being unsafe to a user. The eye safety detection circuit includes a laser current ... | 10/09/2007 |
| 7269193 | Semiconductor laser driving circuit and image recording apparatus A semiconductor laser driving circuit for driving a semiconductor laser as an exposure light source is used in an image recording apparatus for recording an image using a light beam from the laser. The light beam emitted from the laser is subjected to pulse modulati... | 09/11/2007 |
| 7263113 | Laser power controller and method for performing auto power control A laser power controller for performing an auto power control to control the laser power of an optical pick-up unit (OPU) includes: a sample/hold circuit used for sampling and holding a front photodiode output signal to generate an analog feedback signal; an analog-... | 08/28/2007 |
| 7257464 | Variable wattage control system A variable wattage control system is disclosed for providing varying wattage levels for a power-receiving device. The power-receiving device is operatively associated with a sensing means that communicates with a temperature controller for comparing the sensed tempe... | 08/14/2007 |
| 7248610 | Dual loop automatic power control for laser driver A laser driver. The laser driver comprises a diode driver, a power detector, a first extreme detector, a second extreme detector and a current controller. The diode driver receives bias and modulation currents to control a laser diode for generating light signals. T... | 07/24/2007 |
| 7248797 | Transmitter-receiver device and a communication system The invention concerns a transmitter-receiver device (A, B) which comprises a receiver unit (RXA) arranged to receive light and optical signals from a transmitter unit (TXA) arranged to transmit light and optical signals. The device also comprises a supervising unit... | 07/24/2007 |
| 7244907 | Method of optimizing optical power use in a parallel processing laser system The present invention relates to optimizing optical power from a laser processing system, and more specifically to a method of optimizing the optical power by employing parallel laser processing techniques to maximize fabrication quality and yield. The method in the... | 07/17/2007 |
| 7236506 | Method and apparatus for compensating for temperature characteristics of laser diode in optical communication system A method and apparatus for compensating for temperature characteristics of a laser diode are disclosed. The laser diode may be used in a transmitter unit of a transceiver for optical signal transmission. The transceiver includes the laser diode and a monitor photodi... | 06/26/2007 |
| 7233609 | Method and related apparatus for feedback control of laser power of optical disk drive A method and related apparatus for feedback control of laser power provided by a pick-up head of an optical disk drive. The pick-up head can adjust a cross-voltage of a laser generator according to a signal level of a control signal such that the laser power is chan... | 06/19/2007 |
| 7230966 | Injection locking type or MOPA type of laser device An injection locking type or MOPA type of laser device capable of always providing stable output energy and wavelength is provided. For this purpose, the laser device includes an oscillator for exciting laser gas by oscillator discharge and oscillating seed laser li... | 06/12/2007 |
| 7222032 | Laser diode management apparatus and method A time for replacement of a laser diode is decided based on a value of operating current of the laser diode and a value of intensity of laser light output from the laser diode. ... | 05/22/2007 |
