Tokyo, Japan

Oki Electric Industry Co., Ltd. , commonly referred to as OKI, OKI Electric or the OKI Group, is a Japanese company manufacturing and selling info-telecom and printer products. Headquartered in Tokyo, Japan, OKI operates in over 120 countries around the world.OKI manufactured the first telephone in Japan in 1881, and now specializes not only in developing and manufacturing telecommunication equipment but also in information products and mechatronics products, such as Automated teller machine and printers. Its printer business is operated through OKI Data, under the brand name, OKI. OKI had a semiconductor business, in which it spun off and sold to Rohm Co., Ltd., on October 1, 2008.OKI provides products to telecom carriers, financial institutions, government agencies, large corporation as well as SMBs both directly and via distributors and dealers.OKI Data Group, which markets its products under the OKI brand, is focused on creating professional printed communications products, applications and services. The OKI Data Group provides a wide range of devices, from printers, faxes and multi-functional products to business applications and consultancy services, winning industry awards in many categories.OKI Data Americas also markets the OKI proColor Series, a line of digital production printers designed specifically for the graphic arts and production market in North America to offer print solutions for color-critical applications. Wikipedia.


Time filter

Source Type

Provided is an information delivery apparatus for distributing information to a plurality of communication terminals, the information delivery apparatus including: a terminal-information memory unit for storing terminal information of the plurality of communication terminals serving as information delivery destinations; an address-type-selection-information memory unit for storing address type selection information, which is for selecting an address type, for one network segment or each of a plurality of network segments; a transmission-address determination unit for determining address information to be applied based on the terminal information in the terminal-information memory unit and the address type selection information in the address-type-selection-information memory unit; and a transmission unit for transmitting the information by using the address information determined by the transmission-address determination unit.


Patent
Oki Electric Industry Co. and Photonics Electronics Technology Research Association | Date: 2016-06-10

Provided is a waveguide-type optical diffraction grating. A waveguide core includes a waveguide core that is asymmetric with respect to a thickness direction perpendicular to a light propagating direction. In the waveguide core, a phase adjustment portion is configured to adjust a phase difference between a forward wave traveling in an input direction and a reflected wave traveling in a direction reverse to the input direction in the waveguide-type optical diffraction grating, and the phase adjustment portion is provided in a manner that a sum of a phase of the forward wave and a phase of the reflected wave which are generated in the phase adjustment portion becomes a constant value irrespective of a polarization state of input light to the waveguide-type optical diffraction grating.


The station side terminal device of the present disclosure includes: plural terminal devices, each including a buffer section including a through queue and one or more switch queues that temporarily stores packets, and a subscriber side terminal device assignment section that causes unicast packets addressed to switching target subscriber side terminal devices and packets for switching targets that are addressed to all of the subscriber side terminal devices to be stored in a switch queue, and causes unicast packets addressed to non-switching target subscriber side terminal devices and packets for non-switching targets addressed to all of the subscriber side terminal devices to be stored in the through queue; and a terminal device assignment section that transmits obtained unicast packets and obtained packets addressed to all of the subscriber side terminal devices to the terminal device designated by the packets.


Patent
Oki Electric Industry Co. | Date: 2016-06-09

Information about usage bandwidths of the ONUs and information about cover areas of the RRHs are acquired. A maximum cover area of each RRH is set. The remaining RRH included in the currently-set cover areas within the maximum cover area of each RRH is identified. The plurality of ONUs, a total usage bandwidth of which is smaller than or equal to an amount of traffic accommodatable by a single ONU, are identified as a sleep candidate ONU group. The ONU and the RRH to be switched to the sleep state are selected. If the maximum cover area of the RRH connected to one of the ONUs included in the sleep candidate ONU group includes a current cover area of the RRH connected to the remaining ONU, the remaining ONU and the RRH connected to them are selected as the ONU and the RRH to be switched to the sleep state.


Patent
Oki Electric Industry Co. | Date: 2016-06-10

Provided is a wireless communication device that mutually exchanges at least a notification signal including its own identification code and an identification code of a surrounding wireless communication device with the surrounding wireless communication device, the wireless communication device including: a transmission unit for periodically transmitting the notification signal; a reception unit for receiving the notification signal; a recording/updating unit for recording/updating surrounding-wireless-communication-device information of each of surrounding wireless communication devices when the reception unit has received the notification signal, the surrounding-wireless-communication-device information including an identification code of a wireless communication device at a transmission side and an identification code of a surrounding wireless communication device around the wireless communication device at the transmission side that are included in the notification signal; and an abnormality detecting unit for detecting abnormality of the surrounding wireless communication device from the surrounding-wireless-communication-device information recorded in the recording/updating unit.


Patent
Oki Electric Industry Co. | Date: 2016-06-09

There is provided an image processing device including: a preprocessing unit configured to perform preprocessing for reducing an amount of information of an input image to generate a preprocessed image and supply the preprocessed image to an encoding processing unit that encodes and outputs the preprocessed image, wherein the preprocessing unit includes a transformation unit configured to divide the input image into predetermined blocks, perform transformation processing with a predetermined method, and generate transform blocks, a block-of-interest determination unit configured to hold region information indicating a region of interest or a non region of interest of the input image and determine whether or not each transform block is a block of interest on the basis of the region information, and an information amount reduction unit.


Patent
Oki Electric Industry Co. | Date: 2016-05-18

There is provided a sound collection apparatus, including a directionality formation unit configured to form a directionality in a direction of a target area for input signals from a plurality of microphone arrays, a target area sound extraction unit configured to correct a delay between a target area and each of the microphone arrays, and a power of a target area sound component for an output from the directionality formation unit, suppress a non-target area sound by using each output after correction, and extract a target area sound, an area sound enhancement filter formation unit, and an area sound emphasis unit.


Patent
Oki Electric Industry Co. | Date: 2016-01-14

A measuring apparatus includes a light source unit configured to generate probe light, a bifurcating unit configured to cause Brillouin backscattered light occurring from the probe light to bifurcate into first light, which propagates through a first optical path, and second light, which propagates through a second optical path, a delay unit configured to delay one of the first light and the second light, an optical multiplexer configured to multiplex the first light and the second light to generate multiplexed light, and a coherent detector configured to perform homodyne detection of the multiplexed light and to output a difference frequency obtained as a result of the detection as a phase-difference signal.


Patent
Oki Electric Industry Co. | Date: 2016-08-12

A sound pickup apparatus and method form a bidirectionality and a unidirectionality based on sound signals picked up by microphones arranged at vertices of a triangle. A target sound is extracted by performing a spectral subtraction operation and, with respect to each frequency, a ratio of amplitude spectra of beamformer outputs between outputs is calculated for each microphone array of a directionality forming unit. A mode or median of the calculated ratio of amplitude spectra is set as a correction coefficient which corrects power of beamformer outputs for each of the microphone arrays and a target area sound is extracted.


Patent
Oki Electric Industry Co. | Date: 2016-05-18

Provided is a communication device including: a response request determination unit that determines whether a response request is included, from content of a transmission frame; a transmission unit that carries out processing to transmit a frame; a timer that starts to measure a time period after transmission processing is completed; a reception state determination unit that determines whether a response frame is being received when a first time period is measured; a communication processing deciding unit that decides that the time period to be measured by the timer is to be extended by a second time period in when it has been determined that the response frame is being received, and decides that predetermined processing is to be carried out when it has been determined that the response frame is not being received; and a response reception check unit that checks whether the response frame is being received correctly.

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