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41. 发明专利

JP2002218460A COMMUNICATION SERVICE UNIT AND MULTIMEDIA COMMUNICATION METHOD 失效
公开(公告)号：JP2002218460A
公开(公告)日：2002-08-02
申请号：JP2001006252
申请日：2001-01-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAYAMA OSAMU , YOSHIMOTO MORIO , MIO TAKESHI , OKA SUSUMU
IPC分类号： H04N7/173 , H04N7/08 , H04N7/081 , H04N19/00 , H04N19/426 , H04N19/46 , H04N19/587 , H04N19/70 , H04N21/236 , H04N21/2362 , H04N7/24
摘要： PROBLEM TO BE SOLVED: To efficiently share multimedia information and also to easily generate control information for communication and storage without internally analyzing a complicated media information. SOLUTION: A media multiplex separation controlling part 10 separates a plurality of pieces of media information 101 and control information 102 from multimedia multiple information 100 and outputs the media information 101 and the control information 102 to a storage I/F part 20. The storage I/F part 20 extracts an operation mode such as encoding parameters of those various media from operation modes such as encoding parameters included in the control information 102 and sets the operation mode in each media information of storage type multimedia multiple information 103 at the time of multiplexing the media information 101 to generate the storage type multimedia multiple information 103. Thus, storage control information that is necessary as the header information of a storage format in storing the storage control information in a storage device 3 is acquired in the operation modes such as the encoding parameters contained in the control information 102 without analyzing a media information main body.

42. 发明专利

JP2002217989A MULTIPOINT COMMUNICATION SERVICE UNIT 失效
公开(公告)号：JP2002217989A
公开(公告)日：2002-08-02
申请号：JP2001006253
申请日：2001-01-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： HONMA HIROSHI , YOSHIMOTO MORIO , MIO TAKESHI , OKA SUSUMU
IPC分类号： H04N7/15 , H04L13/08 , H04M3/56 , H04N21/23 , H04N21/24
摘要： PROBLEM TO BE SOLVED: To correctly implement multipoint communications without causing overflow of buffers in a service unit and in each terminal, even if multipoint communications are conducted between terminals which differ in communication conditions, such as communication speed. SOLUTION: Line treatment parts 2a to 2n of a multipoint communication service unit 1 have respectively sending buffers 21a to 21n for temporarily keeping data outputted to each of terminals 8a to 8n, of which the remaining quantity is measured and the measured remaining quantity is notified to a unit control part 7. When it is determined that the sending buffers 21a to 21n of the line treatment parts 2a to 2n are about to overflow or is in overflowed state, based on the noticed buffer state, the unit control part 7 notifies this to receiving buffers 81a to 81n of the line treatment parts 2a to 2n and data from terminals are made to be discarded at the inputs of the receiving buffers 81a to 81n.

43. 发明专利

JP2002209195A COMMUNICATION SERVICE UNIT AND MULTIMEDIA COMMUNICATION METHOD 失效
公开(公告)号：JP2002209195A
公开(公告)日：2002-07-26
申请号：JP2001003622
申请日：2001-01-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIO TAKESHI , OKA SUSUMU , MATSUDA YUKINARI , YOSHIMOTO MORIO
IPC分类号： H04N19/156 , H04J3/04 , H04N7/08 , H04N7/081 , H04N7/14 , H04N7/24 , H04N7/52 , H04N19/00 , H04N19/40 , H04N19/46 , H04N19/70 , H04N21/236 , H04N21/434 , H04N21/643
摘要： PROBLEM TO BE SOLVED: To smoothly perform media decoding processing at a receiving side terminal and other receiving side terminals in switching media information to the receiving side terminal. SOLUTION: The communication controlling part 28 of a communication service unit 2 performs message switching processing in regard to the setting (disconnection and resetting in changing transmitting source terminals) of a video logical channel with the communication controlling part (not shown) of the receiving side terminal 3 through a communication channel such as a logical channel for control when the controlling part 28 starts to transmit a video decoded signal to the receiving side terminal 3 and when the controlling part 28 changes the transmitting source terminals. In such a case, a pre-stored new video decoded parameter of a transmitting source terminal is added to a video logical channel setting or resetting message. The receiving side terminal 3 can perform decoding processing of the video decoded signal on the basis of the video decoded parameter included in the video logical channel setting message received through the logical channel for control.

44. 发明专利

JPH11355309A RATE CONTROL COMMUNICATION EQUIPMENT AND RATE CONTROL COMMUNICATION METHOD 失效
公开(公告)号：JPH11355309A
公开(公告)日：1999-12-24
申请号：JP16464198
申请日：1998-06-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIO TAKESHI , OKA SUSUMU
IPC分类号： H04Q3/00 , H04L12/801 , H04L12/853 , H04L12/911 , H04L12/951 , H04Q11/04 , H04L12/28
摘要： PROBLEM TO BE SOLVED: To provide a system and a method that realize fixed rate communication in the case of transmitting various multiplexed medium data through an asynchronous transfer mode ATM network. SOLUTION: Information source coding sections 2a, 2b encode video information 6a and audio information 6b sent from information sources 5a, 5b and give the coded information 7a, 7b to a media multiplex section 3. The media multiplex section 3 multiplexes the media coding information 7a, 7b and store the information as data with a fixed length. The media multiplex section 3 gives one of transmission data 8 with a fixed length to a line interface section 4 when the media multiplex section 3 receives a transmission enable signal 9 from the line interface section. The line interface section 4 converts the received transmission data 8 into data with a form of ATM cells and transmits the converted data to an ATM network.

45. 发明专利

JPH09247156A LINE CONNECTION DEVICE 失效
公开(公告)号：JPH09247156A
公开(公告)日：1997-09-19
申请号：JP4914596
申请日：1996-03-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIO TAKESHI
IPC分类号： H04L7/08 , H04L12/28 , H04Q3/00
摘要： PROBLEM TO BE SOLVED: To recover a stable source clock by excluding fluctuation in a data storage amount in a reception buffer by providing a source clock recovery means with a storage amount reference value setting means for setting a data storage amount and an average storage amount calculation means for an indicating average. SOLUTION: Various medium data 211 extracted by a packet disassembly means 100b are written in a reception buffer 201 synchronously with a network clock 11 at a receiver side. An average storage amount calculation means 206 outputs an average storage amount 215 from the buffer 201 to a control signal generating means 203. On the other hand, a storage amount reference setting means 205 outputs a storage amount reference value 216 being the reference of data read start from the buffer 201 to a control signal generating means 203. The signal generating means 203 controls a VCXO 204 that generates a VCXO control signal 213 based on the average storage amount 215 and outputs a recovered clock 214. Thus, a tentative fluctuation in the storage amount in the buffer in the communication network is excluded.

46. 发明专利

JP2003250133A DATA TRANSMISSION APPARATUS, DATA TRANSMISSION METHOD, AND MULTIMEDIA MULTIPLEX TRANSMISSION SYSTEM 审中-公开
公开(公告)号：JP2003250133A
公开(公告)日：2003-09-05
申请号：JP2002048584
申请日：2002-02-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUDA YUKINARI , OKA SUSUMU , MIO TAKESHI , MURAYAMA OSAMU , YOSHIMOTO MORIO
IPC分类号： H04N7/08 , H04J3/00 , H04L12/70 , H04L12/853 , H04L12/877 , H04N7/081 , H04N7/173 , H04N21/238 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To solve a task of production of a transmission delay because each of encoded frames loses a proper transmission timing. SOLUTION: The data transmission apparatus 10 of this invention includes: a media multiplex section 13 for multiplexing each of encoded frames Fa, Fb of priority media information Ma and non-priority media information Mb to produce a media multiplexed frame Fmux; and a multiplex control section 15 for calculating a fully transmittable information amount Lm1 by subtracting an encoded frame length La1 of the priority media information Ma, an information amount Lf1 the non-priority media information Mb set to the transmission to the media multiplexed frame Fmux and an overhead Lh1 of the media multiplexed frame Fmux from a full transmission information amount Lt1 transmitted during a transmission period of the priority media information Ma and allowing the media multiplex section 13 to produce the media multiplexed frame Fmux resulting from multiplexing the encoded frames Fa, Fb of the non-priority media identification Mb and the priority media information Ma within a range of the fully transmittable information amount Lm1. COPYRIGHT: (C)2003,JPO

47. 发明专利

JP2002058023A ENCODING PICTURE SIGNAL TRANSMITTING SYSTEM 失效
公开(公告)号：JP2002058023A
公开(公告)日：2002-02-22
申请号：JP2000241756
申请日：2000-08-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIBATA KUNIO , MIO TAKESHI , OKA SUSUMU
IPC分类号： H04N5/268 , H04N7/24 , H04N19/00 , H04N19/12 , H04N19/159 , H04N19/169 , H04N19/177 , H04N19/189 , H04N19/423 , H04N19/503 , H04N19/70 , H04N19/85
摘要： PROBLEM TO BE SOLVED: To overcome the problem such that the length of a program is pro longed and a black picture is displayed at the time of switching since black data for one GOP, which is not originally required whenever a picture signal is switched, is inserted although the occurrence of noise against a decoding picture can be prevented. SOLUTION: When a control unit 28 gives the instruction of the switch of a bit stream, the encoding system of the bit stream of a switch candidate is detected, a replacement bit stream in a system similar to the encoding system is generated and a part of the bit stream after a switch point is replaced with the replacement bit stream.

48. 发明专利

JP2002016574A COMMUNICATION TERMINAL, COMMUNICATION SYSTEM AND COMMUNICATION METHOD 失效
公开(公告)号：JP2002016574A
公开(公告)日：2002-01-18
申请号：JP2000196382
申请日：2000-06-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIO TAKESHI , OKA SUSUMU , SHIBATA KUNIO , YOSHIMOTO MORIO
IPC分类号： H04J3/00 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a communication system that can transmit control information and important media with prescribed quality, even when transmission quality is detertorated. SOLUTION: On the occurrence of a fault in, e.g. a communication channel 74 among communication channels 71-7n, a transmission quality monitor section in a channel interface section 6 detects deterioration in the transmission quality of the communication channel 74 at a transmitter side, and a transmission quality state notice (transmission) 6a informs a media multiplexer/demultiplexer section 5 about the deteriorated transmission quality of the communication channel 74. The media multiplexer/demultiplexer section 5 receives transmission quality deterioration information of the communication channel to receive designation of the important media, to be sent from a unit control section 1 with priority and conducts multiplexing processing to generate a multiplexed stream (transmission) 5a, by which the important media information is transmitted from a communication channel with proper transmission quality and priority.

49. 发明专利

JPH04235376A DETECTING DEVICE OF RADAR SIGNAL 失效
公开(公告)号：JPH04235376A
公开(公告)日：1992-08-24
申请号：JP1249591
申请日：1991-01-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIO TAKESHI
IPC分类号： G01S7/32
摘要： PURPOSE:To obtain a detecting device of a radar signal which can cope with momentary changes of a clutter area and the intensity of a clutter and which is not affected by an individual difference among operators. CONSTITUTION:The number of radar input signals corresponding to a unit area determined by an azimuth and a distance is counted in a signal number counting circuit, the total sum of the signal intensities of the radar input signals is determined in an input intensity addition circuit, and these are compared with reference values set beforehand, in an area determining circuit. Thereby a clutter area is specified and a clutter area control signal is generated automatically.

50. 发明专利

JPS59188579A Three-dimensional radar equipment 失效
标题翻译：三维雷达设备
公开(公告)号：JPS59188579A
公开(公告)日：1984-10-25
申请号：JP6252383
申请日：1983-04-08
申请人： Mitsubishi Electric Corp
发明人： MIO TAKESHI
IPC分类号： G01S7/20 , G01S7/32 , G01S13/42
CPC分类号： G01S13/426
摘要： PURPOSE:To remove automatically clutter by deciding on a clutter area from the number of recived quantized signals inputted to an area sectioned into units in three-dimension. CONSTITUTION:When the azimuth signal and elevation signal of a radar and a radar input signal corresponding to the distance quantized by a quantizing circuit 1 are inputted, the number of radar signals is stored in the memory of a clutter detecting circuit 2 which correspond to the area determined by them and sectioned into units in three-dimension. A clutter decision circuit 3 decides on clutter when the number of signals is larger than a specific value to control a clutter removing circuit 4, and a radar signal excluding the clutter automatically is outputted from the circuit 4.
摘要翻译：目的：通过从输入到以三维为单位的区域输入的再现量化信号的数量确定杂波区域来自动去除杂波。构成：当输入对应于由量化电路1量化的距离的雷达的方位信号和仰角信号和雷达输入信号时，雷达信号的数量被存储在杂波检测电路2的存储器中，该杂波检测电路对应于区域确定并分为三维单位。杂讯决定电路3在信号数大于特定值时决定杂波，以控制杂波去除电路4，并且从电路4输出自动排除杂波的雷达信号。

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