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1. 发明专利

JPH06125378A TELEPHONE SET 失效
公开(公告)号：JPH06125378A
公开(公告)日：1994-05-06
申请号：JP27571792
申请日：1992-10-14
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： KANARI SHIGEAKI , SASAKI TAKASHI , FUKUDA HIROKI , ISHIKAWA KAZUHIRO , KATSURAI HIROYUKI , AMANO TETSUYA , CHIKADA HIROAKI , KIKUCHI MINORU
IPC分类号： H04M1/27
摘要： PURPOSE:To improve the convenience of the telephone set by the user by automating dialing when a time and a content of telephone dialing are decided in advance in the case of dialing. CONSTITUTION:Input data by a ten-key of a numeral entry device 8 are stored in a time storage device 2 as time data. When a dial destination setting button 12 is depressed, a dialing destination telephone number entry is awaited, When a voice signal is inputted from a receiver 10, voice data are stored in a voice storage device 6. When a set button 14 is finally depressed, a controller 4 enters a dialing wait state and a timer device 1 starts comparison between time data from a clock 3 with data of the storage device 2. When both data are coincident, that is, the setting time comes, the timer 1 outputs a dial start signal commanding the start of dialing to the controller 4. Upon the receipt of the dial start signal, the controller 4 calls a destination telephone number from the destination telephone number storage device 5 and makes dialing from a terminal 7.

2. 发明专利

JPH0564050A MAGNETIC RECORDING/REPRODUCING DEVICE 失效
公开(公告)号：JPH0564050A
公开(公告)日：1993-03-12
申请号：JP22563691
申请日：1991-09-05
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： KIKUCHI MINORU , GOTO KATSUHIKO , KANARI SHIGEAKI , FUKUDA HIROKI , ISHIKAWA KAZUHIRO , CHIKADA HIROAKI , KATSURAI HIROYUKI
IPC分类号： G11B20/02 , H04N5/225 , H04R3/00
摘要： PURPOSE:To clearly record two kinds of sounds in the case that two microphones as sound input devices are set so that their positions are close to each other and besides, their sound collecting parts are opposite to each other in a magnetic recording/ reproducing device provided with two systems of the sound input devices whose phase characteristics of amplifiers are opposite to each other. CONSTITUTION:The sound generated from the sound source 6 of a subject is collected from the microphone 1, and is inputted to the amplifier 3, and the sound generated from the sound source 7 of a cameraman is collected from the microphones 1, 2, and is inputted to the amplifiers 3, 4. The amplifiers 3, 4 amplify the sounds the microphones 1, 2 collect in a way that their phase characteristics are opposite to each other, and output them to an adder 8. The adder 8 adds properly the sound amplified by the amplifier 3 and the sound amplified by the amplifier 4, and eliminates the excessive sound having passed through the microphone 1 and the amplifier 3 from the original sound having passed through the microphone 2 and the amplifier 4. A block 5 executes recording processing, and at the time of reproduction, the sound generated from the sound source 6 of the subject and the sound generated from the sound source of the cameraman can be clearly heard.

3. 发明专利

JPH05167439A PHASE LOCKED LOOP CIRCUIT 失效
公开(公告)号：JPH05167439A
公开(公告)日：1993-07-02
申请号：JP32853791
申请日：1991-12-12
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST , HITACHI MICOM SYST KK
发明人： SASAKI TAKASHI , CHIKADA HIROAKI , TAKAHASHI TAKASHI , NARITA YOSHIO
IPC分类号： H03L7/06 , H04L7/033 , H04N5/06
摘要： PURPOSE:To reduce the synchronization locking time without use of a phase difference setting circuit and a phase comparator circuit by adding a half of the phase difference relating to a period of an internal clock to a phase of an internal clock. CONSTITUTION:An external synchronizing signal inputted from an input terminal 1 is fed to a phase difference detection circuit 2, the phase difference detection circuit 2 detects a phase difference between the inputted signal and an internal clock outputted from a clock generating circuit 5 and the result is fed to a frequency divider circuit 3. The phase difference is halved and fed to an adder circuit 4, in which the phase of the internal clock and the halved phase difference are added. Then the added internal block is fed back to a frequency divider ratio setting circuit 6. The frequency divider ratio setting circuit 6 changes the frequency divider ratio by the fed-back internal clock to change the period of the internal clock generated in the clock generating circuit 5. Moreover, the clock generating circuit 5 changes the period of the internal clock by changing the frequency divider ratio of the output of the crystal oscillator.

4. 发明专利

JPH0556384A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH0556384A
公开(公告)日：1993-03-05
申请号：JP19637091
申请日：1991-08-06
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： FUKUDA HIROKI , GOTO KATSUHIKO , KANARI SHIGEAKI , ISHIKAWA KAZUHIRO , CHIKADA HIROAKI , KATSURAI HIROYUKI , KIKUCHI MINORU
IPC分类号： G11B27/024 , G11B27/029 , G11B27/036 , G11B27/36 , H04N5/782 , H04N5/7826
摘要： PURPOSE:To provide a magnetic recording and reproducing device capable of performing an excellent reproduction of a part for which an insert recording was performed even when an unrecorded part exists on a magnetic tape in the insert recording in which a recorded part on the magnetic tape is replaced with a new video signal. CONSTITUTION:At the time of an insert recording, the presence or absence of a control signal to be reproduced from a magnetic tape 11 is discriminated in a control signal discrimination circuit 6 by a control head for reproduction 1. When the control signal is judged as the absence, the information is supplied to a control circuit 5 and an alarm output circuit 7. In a control circuit 5, the control signal synchronizing with a video signal to be recorded is generated, the signal is recorded on a magnetic tape 11 via a control head for recording 3 and at the same time, the magnetic tape 11 and a video head 10 are controlled via a drive circuit 8.

5. 发明专利

JPH0350986A SPECIAL PICTURE DEVICE 失效
公开(公告)号：JPH0350986A
公开(公告)日：1991-03-05
申请号：JP18468789
申请日：1989-07-19
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： USAMI AKIRA , SUZUKI HIROAKI , ABE MASAHIRO , CHIKADA HIROAKI , KATSUTA KOICHI
IPC分类号： H04N9/74
摘要： PURPOSE:To attain colored video synthesis even for a reduced video signal with different system by switching a color signal demodulation circuit and a color signal modulation circuit in response to the standard system of 1st and 2nd video signals. CONSTITUTION:A 2nd video signal inputted from a terminal 1 is inputted to an NTSC decoder 4 and a PAL decoder 21 and a demodulated R-Y signal is inputted to a changeover switch 22 and a B-Y signal is inputted to a changeover switch 23. Then the switches 22, 23 are switched by a discrimination signal inputted from a terminal 24 so as to input a color difference signal to a memory 7. Then a 1st video signal inputted from a terminal 13 is inputted to an NTSC encoder 12 and a PAL encoder 27 to modulate color difference signal and the result is inputted to a changeover switch 29. Then the switch 29 is switched by a discrimination signal inputted from a terminal 25, a signal of the same standard system as the 1st video signal is inputted to a Y/C mix circuit 17, in which the signal is mixed with the luminance signal. Thus, even when the standard system for the 1st and 2nd video signals differ from each other, the colored synthesis video signal is obtained.

6. 发明专利

JPH031348A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH031348A
公开(公告)日：1991-01-08
申请号：JP13466689
申请日：1989-05-30
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： CHIKADA HIROAKI , SUWA MITSURU , SUZUKI HIROAKI , USAMI AKIRA
IPC分类号： H04N5/7826 , G11B15/02 , G11B27/029 , H04N5/76 , H04N5/782
摘要： PURPOSE:To enable the video recording for other program using a timer video recording reservation function even when plural unnecessary parts exist on a tape by providing a memory for registering index code numbers to a control means equipped with a reservation function. CONSTITUTION:Control pulses and the index codes are detected in advance from the beginning to the end of the magnetic tape 8 and their index code numbers and the time between each index code are stored in the memory 2 by a microcomputer 1. Consequently, the index code member to be recorded together with the reservation time for a program can also be registered. Therefore, at the time of a reserved program video recording mode, the video recording can be commenced by stopping the magnetic tape 8 in a position of a specified index code number on the magnetic tape. By this method, even when plural places which are desired for video recording exist on the magnetic tape, the video recording can be carried out in an unrestricted position based on the index code number.

7. 发明专利

JPH02281889A DIGITAL IMAGE SIGNAL PROCESSOR 失效
公开(公告)号：JPH02281889A
公开(公告)日：1990-11-19
申请号：JP10163289
申请日：1989-04-24
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： SUZUKI HIROAKI , ABE MASAHIRO , USAMI AKIRA , CHIKADA HIROAKI , KATSUTA KOICHI
IPC分类号： H04N11/16 , H04N9/74
摘要： PURPOSE:To cope with without the cost-up of a delay line by providing a means for switching the case when a 1H delay line of a color demodulating circuit is used and the case when it is not used in accordance with the case when a thinning processing of a scanning line is executed and the case when it is not executed. CONSTITUTION:In the case of reducing a screen by thinning out a scanning line, a high level is inputted to a control input terminal 34, and a changeover switch 21 is switched to an H side. When the scanning line is not thinned out, the control input terminal 34 is set to a low level, and the changeover switch 21 is switched to an L side. In such a way, in the case the scanning line which required a 1H delay line 18 is thinned out, and in the case a chrominance signal of a high band is required without thinning out the scanning line, with regard to whether the chrominance signal passing through the 1H delay line 18 is used or not, the band of the chrominance signal can be selected by providing the changeover switch 21, therefore, it becomes possible to cope with without making the 1H delay line 18 expensive.

8. 发明专利

JPH02226893A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH02226893A
公开(公告)日：1990-09-10
申请号：JP4529889
申请日：1989-02-28
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： USAMI AKIRA , SUZUKI HIROAKI , CHIKADA HIROAKI , ABE MASAHIRO
IPC分类号： H04N9/79 , G11B15/087 , G11B20/06 , H04N9/83
摘要： PURPOSE:To prevent rainbow noise at reproduction of overwrite portion by interrupting a chroma signal for a prescribed time after recording stop command and recording only a luminance signal so as to simplify the detection of the end of recording area of an old scene at consecutive shot. CONSTITUTION:The device is provided with an input terminal 1 for a video signal, an input terminal 2 for a control signal, an OSD(ON SCREEN DISPLAY) 3, a luminance signal (Y)/chroma signal (C) separator 4, a recording luminance signal processing circuit 5, a recording chroma signal processing circuit 6, a switch 7 a Y/C mixer 8 and an output terminal 9. Since only the luminance signal Y subjected to FM modulation for a prescribed time together with a recording stop command is used as the recording signal, the recording area having only the luminance signal Y from the end of the recording area of the scene is provided. Thus, the end of the recording area of an old scene is simply detected, the trouble of consecutive shot is avoided and production of rainbow noise due to overwrite at consecutive shot is prevented.

9. 发明专利

JPH04205870A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH04205870A
公开(公告)日：1992-07-28
申请号：JP32883890
申请日：1990-11-30
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： FUKUDA HIROKI , GOTO KATSUHIKO , KANARI SHIGEAKI , ISHIKAWA KAZUHIRO , KATSURAI HIROYUKI , CHIKADA HIROAKI , KIKUCHI MINORU , KUNITAKE HIROMI
IPC分类号： G11B27/02 , G11B27/024 , G11B27/029 , G11B27/36
摘要： PURPOSE:To prevent insert recording in an unreproducible unrecorded section by providing the first means which discriminates whether or not a recording position is the unrecorded section at the time of insert recording and the second means which informs the discriminated result of the first means. CONSTITUTION:This magnetic recording and reproducing device is constituted of a control head 1, amplifier 2, control signal discrimination circuit 3, alarm output circuit 4, control circuit, drive circuit, video recording circuit 7, video head 8, magnetic tape 9, adder circuit 10, etc. Insert recording is started from the already recorded section of the tape 9, but, when the insert recording advances and reach an unrecorded section, the first means detects it and informs that the recording reaches the unrecorded section by driving the second means. In addition, when the first means detects that the recording position on the tape 9 reaches the unrecorded section, the recording is stopped and the insert recording is inhibited in the unrecorded section. Therefore, insert recording can be prevented in the unreproducible unrecorded section.

10. 发明专利

JPH04152292A TIMER SETTING DEVICE 失效
公开(公告)号：JPH04152292A
公开(公告)日：1992-05-26
申请号：JP27622190
申请日：1990-10-17
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： KIKUCHI MINORU , GOTO KATSUHIKO , FUKUDA HIROKI , KANARI SHIGEAKI , KATSURAI HIROYUKI , ISHIKAWA KAZUHIRO , CHIKADA HIROAKI , KUNITAKE HIROMI
IPC分类号： H04N5/7826 , G04G15/00 , G11B15/02 , H04N5/76 , H04N5/78 , H04N5/782
摘要： PURPOSE:To enable timer setting for VTR and video tape assortment to be simplified by directly reading character information through character recognition function as the information input means of a timer setting device. CONSTITUTION:A character recognition sensor 3 analyzes entered channel information and program title information respectively, and recognizes the information separately for each channel and program title. Setting channel data and recognized program title data are outputted from the sensor 3 to a timer setting device 4, and stored therein. In the device 4, the data is displayed on an LCD for content recognition, and the content of the data is confirmed. If there is any error in the displayed content, an error button 13 is pressed and the stored setting channel data and set program data are erased. When a data transmission button 12 is pressed, data for week and date setting and channel setting stored in the memory of the device 4, is transmitted to the VTR 6. Timer recording is set and completed, acceding the aforesaid data entered in the VTR.

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