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1. 发明专利

JP2004088677A Mobile terminal 审中-公开
标题翻译：移动终端
公开(公告)号：JP2004088677A
公开(公告)日：2004-03-18
申请号：JP2002249900
申请日：2002-08-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： EZAKI TOMOHIRO , OBATA SHINICHI , SOMEYA RYUICHI
IPC分类号： H04N5/225 , H04M1/00 , H04N5/76 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To provide a mobile terminal which can process a moving image effectively even if the processing capacity of a CPU in the terminal is not high.
SOLUTION: The mobile terminal comprises an image forming means for outputting an image signal, a first memorizing means for memorizing the image signal output from the image forming means, a compressing means for compressing the image signal read out from the first memorizing means, a second memorizing means for memorizing the compressed image signal from the compressing means, an expanding means for expanding the compressed image signal read out from the second memorizing means, a displaying means for displaying the image signal output from the expanding means, and a controlling means, which executes a control in such a way that the expanding means automatically starts expanding a compressed image signal read out from the second memorizing means after a subsequent image signal output by the image forming means is over, while the displaying means displays an image signal output from the expanding means. The controlling means controls the expansion process of the compressed image signal by the expanding means, and the compression process of the image signal by the compressing means.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使终端中的CPU的处理能力不高，也能够提供能够有效地处理运动图像的移动终端。解决方案：移动终端包括用于输出图像信号的图像形成装置，用于存储从图像形成装置输出的图像信号的第一存储装置，压缩装置，用于压缩从第一存储装置读出的图像信号，用于存储来自压缩装置的压缩图像信号的第二存储装置，用于扩展从第二存储装置读出的压缩图像信号的扩展装置，用于显示从扩展装置输出的图像信号的显示装置，以及控制装置，其执行控制，使得扩展装置在由图像形成装置输出的后续图像信号结束之后自动开始扩展从第二存储装置读出的压缩图像信号，同时显示装置显示图像信号从扩展手段输出。控制装置通过扩展装置控制压缩图像信号的扩展处理，以及压缩装置对图像信号的压缩处理。版权所有（C）2004，JPO

2. 发明专利

JP2003078863A Recorder and portable communication equipment using the same 有权
标题翻译：记录仪和便携式通讯设备
公开(公告)号：JP2003078863A
公开(公告)日：2003-03-14
申请号：JP2001260590
申请日：2001-08-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： EZAKI TOMOHIRO , SHIMIZU HIROSHI , NISHIYAMA MIKA , KOBAYASHI HITOSHI , IKEDA RYUICHI , OBATA SHINICHI
IPC分类号： H04N5/76 , H04M1/00 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To provide a recorder with which postrecording can be easily performed while suppressing power consumption and portable communication equipment using the recorder.
SOLUTION: Video that has been subjected to video recording and recorded voice are stored in a memory in different files respectively as they are, and the video and the recorded voice are multiplexed and made to be a file with video and voice after postrecording operation or when a user stores the video and the recorded voice after confirmation of the contents of the video and the recorded voice.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种记录器，其中可以容易地执行后记录，同时抑制功率消耗和使用记录器的便携式通信设备。解决方案：将视频记录和记录的声音的视频分别存储在不同文件的存储器中，视频和录制的声音被多路复用，并且在录像操作之后被制成具有视频和语音的文件用户在确认视频的内容和记录的声音之后存储视频和录制的声音。

3. 发明专利

JP2002057752A PORTABLE TERMINAL 失效
公开(公告)号：JP2002057752A
公开(公告)日：2002-02-22
申请号：JP2000240854
申请日：2000-08-09
申请人： HITACHI LTD
发明人： TAKIZAWA KAZUYUKI , EZAKI TOMOHIRO , SHINAGAWA AKIO
IPC分类号： H04M1/00 , H04M1/658 , H04M1/725 , H04W88/00 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To select voice in a charging base according to data sent from a portable terminal while utilizing an idle space of the charging base and to transfer the selected voice to the portable terminal. SOLUTION: When a speech message control section in the charging base detects that the portable terminal is placed on the charging base, the speech message control section selects PCM speech message data optimum to that day or a state at that time among at least one PCM speech message data stored in a memory section in the charging base based on various parameters including transmission reception log data read from the portable terminal, transfers the selected data to a control section of the portable terminal, the control section converts the data into analog voice and a speaker provided to the portable terminal reproduces the analog voice.

4. 发明专利

JP2001245053A AUTOMATIC ANSWERING MESSAGE MANAGEMENT SYSTEM AND PORTABLE TELEPHONE SET FOR USE IN THE SYSTEM 失效
公开(公告)号：JP2001245053A
公开(公告)日：2001-09-07
申请号：JP2000055932
申请日：2000-02-28
申请人： HITACHI LTD
发明人： MATSUDA MASAYUKI , EZAKI TOMOHIRO , SHINAGAWA AKIO
IPC分类号： H04M3/53 , H04M1/65 , H04M3/42 , H04W4/12 , H04W88/18 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To enable a person carrying a portable telephone set to easily manage an automatic answering message recorded in a home station. SOLUTION: A means is provided which generates additional information as keywords for management of automatic answering messages by key operation input of the portable telephone set with respect to individual automatic answering messages recorded in the home station and stores this additional information in a storage device. The portable telephone set is provided with a function to generate, store, and display the additional information or a means which transmits an automatic answering message reproducing request or the like to the home station. Further, the portable telephone set is provided with a message access means which selects additional information at an arbitrary time to transmit a reproducing or erasing request of a pertinent automatic answering message to the home station and reproduces the automatic answering message from the home station.

5. 发明专利

JP2000032555A MOBILE COMMUNICATION EQUIPMENT PROVIDED WITH CHANNEL QUALITY DETERIORATION NOTICE FUNCTION 失效
公开(公告)号：JP2000032555A
公开(公告)日：2000-01-28
申请号：JP19700898
申请日：1998-07-13
申请人： HITACHI LTD
发明人： EZAKI TOMOHIRO , KAMIMURA TOSHIO
IPC分类号： H04B7/26 , H04W28/04 , H04W88/02 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To allow a mobile station (terminal) side to detect an error in an incoming signal with high efficiency only with addition/revision of a function of the mobile station (terminal) side. SOLUTION: A retransmission request detection circuit 107 checks reception data received by a reception circuit 101 and discriminates whether or not a retransmission is requested and gives a signal denoting detection of an error of a transmitter side to a transmission frame buildup circuit 105 and a light emitting circuit 104, when the 107 discriminates the occurrence of the retransmission request. The light emitting circuit 104 lights a yellow light emitting diode for a prescribed period. Furthermore, an error detection circuit 103 checks whether or not an error in the unit of frames is in existence in data received by the reception circuit 101, aborts the received data in the received frame when an error is present, informs the transmission frame buildup circuit 105 of a frame number of a frame that is not received, and gives a signal denoting detection for an error of the receiver side to the light emitting circuit 104. The light emitting circuit 104 causes a red light emitting diode to emit light for a prescribed period of time.

6. 发明专利

JPH09284719A AUDIO SIGNAL COMPRESSOR AND CAMERA 失效
公开(公告)号：JPH09284719A
公开(公告)日：1997-10-31
申请号：JP9494096
申请日：1996-04-17
申请人： HITACHI LTD
发明人： IMAI TSUTOMU , EZAKI TOMOHIRO
IPC分类号： H04N5/225 , G10L19/02 , G10L21/02 , H04N5/92 , H04N5/928 , G10L3/02 , G10L7/04
摘要： PROBLEM TO BE SOLVED: To provide automatic gain control by adding a comparatively simple means to the compressor. SOLUTION: An automatic gain control circuit 104 controls a scale factor being a reproduction magnification of each sub-band calculated by a scaling circuit to generate a new scale factor, a bit stream generating circuit 106 edits a header, quantization bit assignment information, a new scale factor and a quantized sample into a bit stream form. Thus, the audio signal compression processing including automatic gain control processing is realized.

7. 发明专利

JPH088850A RADIO ELECTRONIC BOOK SYSTEM 失效
公开(公告)号：JPH088850A
公开(公告)日：1996-01-12
申请号：JP13448994
申请日：1994-06-16
申请人： HITACHI LTD
发明人： YAMADA YOSHIHIRO , EZAKI TOMOHIRO
IPC分类号： G06F21/24 , H04H20/00 , H04H20/38 , H04H20/53 , H04H60/15 , H04H60/17 , H04H60/21 , H04H60/23 , H04L9/00 , H04L9/10 , H04L9/12 , H04H1/00
摘要： PURPOSE:To appropriately provide information desired by a user any time anywhere by paying a charge by transmitting key information for decoding ciphered book information to a third transmission means after performing a charging processing. CONSTITUTION:A management center is provided with a second reception means 106, a charging means 107 and the third transmission means 108, judges how much is to be charged to whom from ID information obtained by the second reception means 106 and the ID information of the user or an electronic book device 201 and performs the charging processing. After the charging processing is ended, the management center sends the key information for reading information to the electronic book device 201 by the third transmission means 108. The electronic book device 201 receives the key information by a third receiver 109 and sets the key information to a decoder 110. The decoder 110 waits for target information to arrive in a first receiver 102 and performs decoding when the information is received and the information is displayed by a display means 103.

8. 发明专利

JPH0677740A ENVELOPE SIGNAL GENERATING CIRCUIT AND LINEAR TRANSMITTER 失效
公开(公告)号：JPH0677740A
公开(公告)日：1994-03-18
申请号：JP22829892
申请日：1992-08-27
申请人： HITACHI LTD
发明人： NISHIKI YUTAKA , TAKAHARA YASUAKI , EZAKI TOMOHIRO , YAMADA JUN
IPC分类号： H03F1/02 , H03G3/20
摘要： PURPOSE:To provide the envelope signal generating circuit of suitable configuration in the case of making the entire linear transmitter into an LSI. CONSTITUTION:The in-phase envelope component I (t) and the orthogonal envelope component Q (t) are respectively impressed to a ROM 21 as read addresses while sharing time and therefore, the added result [I (t) +Q (t) ], namely, the envelope signal R (t) is obtained at an adder 25. This envelope signal R (t) is outputted through a D/A converter 32 in the band limited form at a low- pass filter 33 and turned to an envelope signal to a power supply voltage control circuit.

9. 发明专利

JPH0669973A PSK DEMODULATION CIRCUIT AND ITS DEMODULATION METHOD 失效
公开(公告)号：JPH0669973A
公开(公告)日：1994-03-11
申请号：JP22004992
申请日：1992-08-19
申请人： HITACHI LTD
发明人： MURAKAMI YASUYUKI , HOTTA MASAO , KIKUCHI TAKAFUMI , OTSUKA MASANORI , HATANO YUJI , EZAKI TOMOHIRO , TAKAHARA YASUAKI
IPC分类号： H04L27/22
摘要： PURPOSE:To utilize the reception characteristic of synchronization detection at a low reception level by arranging an adaptive carrier type synchronization detector and a synchronization detector in parallel and selecting either of them depending on the quantity of a phase error between symbols. CONSTITUTION:A synchronization detector 714 employing digital signal processing is arranged in parallel with a delay detection circuit of an adaptive carrier type synchronization detector. Since the synchronization detector 714 has much arithmetic operation quantity and has a high power consumption, when the reception state of a radio wave is excellent, the synchronization detector 714 is not in use but the delay detection circuit is used, and only when the reception state of a radio wave is not excellent, the synchronization detector 714 is used for demodulation. In order to select the delay detector or the synchronization detector, a phase error is detected and its level is measured. That is, when the reception state is excellent, a synchronization detector drive signal 709 is set to 0 to close a switch 707 to apply phase control signals 106,107 to a phase frequency control circuit 113 and to apply a suppression signal to an amplitude quantization circuit 713 and the synchronization detector 714 not to start them.

10. 发明专利

JPH03235511A AUTOMATIC WAVEFORM EQUALIZING SYSTEM 失效
公开(公告)号：JPH03235511A
公开(公告)日：1991-10-21
申请号：JP2958090
申请日：1990-02-13
申请人： HITACHI LTD
发明人： EZAKI TOMOHIRO , OKAMOTO SADAJI , TAKAHARA YASUAKI , SUDO SHIGEYUKI , AIDA KOSAKU
IPC分类号： H03H21/00 , H04B3/04
摘要： PURPOSE:To reduce a data error rate by reading an input waveform repeatedly from a memory storing the input waveform for a training period and using the input waveform for the updating of a tap coefficient. CONSTITUTION:A received signal waveform is tentatively stored in a memory 1 as it is. Then a signal waveform for a training period 41 is read repeatedly for plural number of times continuously one after another and inputted to this automatic waveform equalizer. Then the training period 41 is extended equivalently, the training operation is implemented for a long period to converge the tap coefficient. Thus, the convergence of the tap coefficient is enhanced without decreasing the efficiency of data transfer and the accuracy of an estimating signal is improved to reduce the data error rate.

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