Abstract:
PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator of higher integration than those of conventional technology, with the size reduced, without changing inductance of an inductor. SOLUTION: The voltage-controlled oscillator comprises an oscillating stage, having two coupled CMOS inverters forming a quadrupole with two inputs and two outputs, and two oscillating circuits, placed respectively between the inputs and the outputs of the inverters and each having an inductor. The quadrupole is designed so that the two outputs are in phase. Two inductors of the oscillating circuits are produced by means of MOS technology and are superposed one on top of the other. The region, occupied with the oscillator, can be reduced down to a half maximally, by superposing the two inductors. The oscillator has an amplifying stage, comprising two MOS transistors which are reverse biased to each other. Each gate of the MOS transistors is connected to one of the oscillation stages. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To eliminate trouble that the application of a protocol including parameter addition for optimizing a video signal to be received in video telephone communications or a remote control instruction for a camera is accompanied with a use of a compatible motor-driven camera. SOLUTION: In a process for instructing a remote video processing circuit 20 which generates a video stream to be transmitted to a terminal device in order to operate upon the video stream to be transmitted, the process includes the steps of transmitting the instruction from the terminal device to the remote video processing circuit which corrects the video stream to be transmitted, and performing the instruction relating to the video stream in the video processing circuit before transmitting the video stream to the terminal device. The video stream processing instruction can be performed by the video processing circuit 20 including an instruction of specifying an image region of an image contained in the video stream to be transmitted. Besides, the video stream processing instruction is associated with the specification of processing to be applied to the image region. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a solution for evasion of inconsistency between an inverse preprocessing filter (explicitly or implicitly present) and a time-base corrected signal. SOLUTION: At the encoder side, a speech signal is a perceptually weighted signal prior to entering a time scale modification module, and then the modified signal is transformed into another domain, such as the speech or LP short-term residual domain, using the corresponding inverse filtering operation directly or possibly combined with another processing, for instance, a short-term LP filtering. A shift function is calculated in the time scale modification process to associate the position of each sample in the modified signal with its original position before the modification. The positions of the samples in the modified signal that correspond to sub-frame boundaries of the original signal are evaluated to switch filters for the inverse filtering at the appropriate instants. Therefore, the synchronization between the inverse filters and the modified signal is maintained. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To enhance problems, caused by encoding and decoding, of permutation codes in encoding/decoding of digital signals. SOLUTION: The invention relates to the encoding/decoding of digital signals, especially using permutation codes relating calculation of combinatorial expressions. According to the invention, the combinatorial expressions are represented by prime-power factorizations, and determined by preliminary reading of the pre-recorded expressions of selected integers. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a virtual conference room for a system of videoconference among participants located in remote sites, which is performed while projecting figures of all the participants located at the distant sites. SOLUTION: Each image screen in the videoconference system is a big screen 10 such as a projection or overhead projection or direct vision screen, and one or a plurality of display systems for forming a screen-wall are provided. In a space reproduced on the screen-wall formed by the screen 10, all the remote participants are displayed simultaneously. The system comprises for each site a device for spatial sound distribution 100A, Hi, or Mj for producing a correspondence between the sound uttered by each remote participant and his/her image projected onto the screen at the concerned site. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a processing system in which an application is corrected or added very easily and a terminal unit is permanently available. SOLUTION: The system connecting a smart card to the terminal unit includes the terminal unit and the card, and comprises a master means for controlling specific processing, and a slave means mediating a request to the master means for carrying out the specific processing. The master means is provided in the card, and the slave means is provided in the terminal unit. The hierarchical structure of both means is thereby reversed. Consequently, data in the terminal unit is maintained without a change, and data in the card is corrected to facilitate addition or correction. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a coding method (or turbo code) of parallel connection with more improved permutation characteristics. SOLUTION: The method and device code source digital data. In the method, at least two basic coding steps (11, 12) each including the whole set of source data (15) are used, and a permutation step (13) for modifying the inclusion order of the source data between the basic coding steps (11, 23) is provided. The source data (15) are organized in source code words each including (n) binary source elements, (n) being not less than 2, and the permutation step (13) includes: a step (132) for a reversibly modifying (132) the content of at least certain source code words and outputting the modified code words; a step (131) of performing permutation of the order of the modified code words or source code words. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a remote person tracking method and its device carrying out watching by a means not inflicting any feeling of constraint in regard to activities in a dwelling of an elderly person living alone, or the like. SOLUTION: The person 112 in the dwelling 100 makes a living, and a plurality of electric appliances connected to an electrical distribution network 105 are energized and cut off in response to the activities of the person. The change of each energization current is detected by a detector 110. In regard to a detection signal, tracking data are generated including information relevant to a time when it has been detected, which electric appliance has been a generating source of the signal, and what type has been the change of electrical states corresponding to the signal. The data are sent to a processing server 150 via a communication network 50, and on the basis of such tracking data generated during a predetermined time, the existence or nonexistence of an abnormality concerning activities carried out by the person is stochastically evaluated. A use terminal 180 is operated by a manager 190 of a system. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To allow a dialoguing rational agent to generically manage multimodal interactions with its contacts, which may be human users or other software agents. SOLUTION: The rational agent includes an interpretation means to transform events translating the communication activity of an external agent into incoming formal records, a rational unit creating outgoing formal records as a function of the incoming formal records and a behavioral model of the rational agent, and an outgoing event generation means transforming the outgoing formal records into outgoing events enabling the communication activity of the rational agent with the external agent. The interpretation means comprise several interpretation modules, and the rational agent also comprises an input and output management layer, which correlates incoming formal records and submits the incoming formal communication records thus correlated to the rational unit. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a voice mail system in which the maintenance and management burden of a communication network is reduced and a sender is capable of confirming voice information reproduction information left by the sender. SOLUTION: In the voice mail system, each of communication terminals on a communication network comprises: a communication destination detecting means 1 for detecting and connecting a terminal of a communicating party; a communication history storage means 2 for making re-communication with a terminal possible directly between terminals if first communication is performed between specific terminals; an information storage means 3 for storing and recording voice information; a recorded information presence/absence display means 4 for displaying the presence/absence of stored information; a recorded information detecting and reproducing means 6 for detecting and reproducing recorded information; a reproduction completion signal transmitting means 6 for transmitting a reproduction completion signal to each of transmission source terminals when the reproduction of the recorded information is completed; and a reproduction confirmation display means 7 for displaying the completion of reproduction on the transmission source terminal in response to the recorded information reproduction completion signal. COPYRIGHT: (C)2006,JPO&NCIPI