Patent application number | Description | Published |
20090036062 | Radio Device - A data rate is to be determined depending on circumstances. A control unit ( | 02-05-2009 |
20100067438 | COMMUNICATION METHOD AND, TERMINAL APPARATUS AND BASE STATION APPARATUS USING THE METHOD - When a control unit receives an authentication request from a terminal apparatus, the control unit transmits an authentication response to the terminal apparatus. When it receives a connection request from the terminal apparatus to which the authentication response has been transmitted, the control unit transmits a connection response to the terminal apparatus. The control unit carries out data communication with the terminal apparatus to which the connection response has been transmitted. When it receives a notification indicating that a connection has already been granted by another base station apparatus, in substitution for the authentication request, the control unit carries out data communication with the terminal apparatus. | 03-18-2010 |
20100184442 | COMMUNICATION METHOD AND, TERMINAL APPARATUS AND BASE STATION APPARATUS USING THE METHOD - A packet communication unit ( | 07-22-2010 |
20100202338 | COMMUNICATION METHOD AND WIRELESS DEVICE USING THE SAME - A packet receiver receives an instruction, sent from other radio apparatuses, as to the transfer mode used when data signals received from the other radio apparatuses are to be forwarded. A setting unit sets the transfer mode based on the instruction received. The setting unit sets a primary transfer mode or a secondary transfer mode as the transfer mode. The probability of carrying out a transfer by a packet generator and a packet transmitter under the primary transfer mode is defined to be higher than that under the secondary transfer mode. The packet generator and the packet transmitter transfer the data signals received from the other radio apparatuses, according to the transfer modes respectively set. | 08-12-2010 |
20110013610 | COMMUNICATION METHOD AND WIRELESS APPARATUS USING THE COMMUNICATION METHOD - A wireless unit performs a frequency conversion process, a quadrature modulation process, and a quadrature detection process. A modem performs a modulation/demodulation process. A processing unit performs digital signal processing on a signal from the modem and on a signal to the modem. An image capturing unit acquires an external image and outputs the acquired image to a coding unit. The coding unit generates image data by performing a compression encoding process on the image received from the image capturing unit and outputs the image data to a control unit. The control unit controls the overall movement of a vehicle camera apparatus. | 01-20-2011 |
20110044254 | COMMUNICATION METHOD, BASE STATION DEVICE USING THE SAME, TERMINAL DEVICE, AND COMMUNICATION SYSTEM - A packet communication unit and a signal processing unit communicate with a plurality of terminals, respectively, in an infrastructure mode. A control unit controls the communications performed by the packet communication unit and the signal processing unit. The control unit permits two of the plurality of terminal apparatuses to communicate with each other in an ad-hoc mode, over a predetermined period time, and specifies the ad-hoc period to at least the two terminal apparatuses via the packet communication unit and the signal processing unit. | 02-24-2011 |
20110134788 | NOTIFYING METHOD, AND ACCESS CONTROL DEVICE - It is specified in a manner such that a frame containing a first period formed by a plurality of slots and a second period having a predetermined length is repeated. A detecting unit detects a slot, which is usable for the communications between a plurality of other terminal apparatuses, from among a plurality of slots in the first period of a frame containing the first period and the second period. A modem unit and an RF unit broadcast information on the detected slot. | 06-09-2011 |
20110134789 | REPORT METHOD AND ACCESS CONTROL DEVICE - It is specified that a frame containing at least the plurality of slots is repeated. A detecting unit detects a slot usable in the communications between terminal apparatuses, from among a plurality of slots. A modem unit and an RF unit broadcast the information on the detected slot. A power measuring unit in the detecting unit measures the respective received powers of the plurality of slots, and an empty slot identifying unit identifies a slot whose received power is less than a threshold value. | 06-09-2011 |
20110170484 | RADIO APPARATUS WHICH COMMUNICATES WITH OTHER RADIO APPARATUSES AND COMMUNICATION SYSTEM - A data processing unit selects either one of a base station mode and a terminal mode so as to perform communications using packet signals. The base station mode is a mode in which a packet signal, containing data indicating that an initial source and a final destination are not its own radio apparatus, is to be communicated; the terminal mode is a mode in which a packet signal, containing data indicating that the initial source or the final destination is its own radio apparatus, is to be communicated. A control unit starts the radio apparatus by setting the data processing unit in the terminal mode. When a packet signal, which has been transmitted from another radio apparatus and which contains broadcast information, has not been received before a certain period of time elapses after the start, the control unit switches the mode of the data processing unit to the base station mode. | 07-14-2011 |
20110211455 | REPORT METHOD AND ACCESS CONTROL DEVICE AND RADIO DEVICE USING THE METHOD - A frame specifying unit frames in such a manner that a frame containing at least a plurality of slots is repeated and in such a manner that a part of the plurality of slots contained in each frame are reserved for use on an access control apparatus. An empty slot identifying unit detects a slot, which is usable for the communications between radio apparatuses, from among the remaining part of the plurality of slots. A selection unit selects a slot from among the part of the plurality of slots in order to broadcast information on the detected slot. A modulation unit and an RF unit broadcast information on the slot detected by the empty slot identifying unit, using the selected slot. | 09-01-2011 |
20110228866 | BROADCASTING METHOD FOR SENDING SIGNAL CONTAINING PREDETERMINED INFORMATION AND RADIO APPARATUS - A control information extraction unit receives information on a frame that contains at least a plurality slots from an access control apparatus for controlling communications between radio apparatuses. The control information extraction unit generates a frame that contains at least a plurality of slots in such a manner as to synchronize with the frame corresponding to the received information. An estimation unit ( | 09-22-2011 |
20120028662 | BROADCASTING METHOD AND RADIO APPARATUS - An RF unit receives periodically signals broadcast by other terminal apparatuses. When the quality of the signal received periodically is more deteriorated than a second threshold value even though the intensity of the signal received periodically is larger than a first threshold value, an identifying unit detects a malfunction in another terminal apparatus from which the signal received periodically by the receiver has been broadcast. A processing unit, a modem unit, the RF unit and an antenna each broadcasts a signal containing the detection result that the malfunction has been detected and information on a detected location. | 02-02-2012 |
20120040703 | BROADCASTING METHOD, ACCESS CONTROL APPARATUS AND RADIO APPARATUS - A processing unit generates timing information on timing, with which each of radio apparatuses is to synchronize in communication between the radio apparatuses when each of the radio apparatus broadcasts a signal, to control the communication between the radio apparatuses. A modem unit and the like broadcast the thus generated timing information. An RF unit and the like receive a signal which is synchronous with the timing information broadcast by them. When a signal which is asynchronous with the timing information and when the duration of this signal continues for a period longer than a first threshold value and the quality of this signal is more deteriorated than a second threshold value, a decision unit detects that the received signal is a disturbing signal. The modem unit and the like also broadcast to the effect that the disturbing signal has been detected. | 02-16-2012 |
20130322368 | TERMINAL APPARATUS TRANSMITTING SIGNAL CONTAINING PREDETERMINED INFORMATION - An RF unit and a modem unit receive a packet signal, containing information regarding a frame construction, which is transmitted from a base station apparatus in a first period of a frame at least including first periods and second periods. An extraction unit identifies the second period in the frame, based on the received packet signal. A setting unit sets a waiting time period in the identified second period. A carrier sensing unit carries out carrier sensing over the waiting time period set by the setting unit. The modem unit and the RF unit broadcast the packet signal based on a result of the carrier sensing. | 12-05-2013 |