专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS5987679A DOUBLE CASSETTE TAPE RECORDER 失效
公开(公告)号：JPS5987679A
公开(公告)日：1984-05-21
申请号：JP19746282
申请日：1982-11-12
申请人： HITACHI LTD
发明人： NEMOTO HISASHI
IPC分类号： G11B15/02 , G11B27/02 , G11B27/024
摘要： PURPOSE:To simplify correction and editing work at the time of dubbing by performing dubbing only by turning the play switch of the first recorder and the rewinding and quick traverse switch on simultaneously when suspending dubbing of a music and dubbing the next music. CONSTITUTION:In dubbing the next music suspending dubbing of a music under dubbing, if the play switch 15 and rewinding and quick traverse switch 16 are turned on simultaneously, output of a regenerative amplifier 18 is inputted to an input circuit 14 through a music selection circuit 17, and the first recorder starts music selection action. When input becomes ''L'' from ''H'', music selection action of the music selection circuit 17 is released and play action is started. As output of a NOA circuit is made ''H'' potential by above-mentioned switch operation, a Tr 31 becomes on, and recording of the second recorder is released and becomes a state of rewinding. The amount of rewinding is determined by a pulse generating circuit 25, a memory circuit 26 and a CPU 23. When the level of the music selection circuit 17 becomes ''L'', the CPU 13 makes the first recorder play action and at the same time, makes Tr 32, 33 on. Accordingly, dubbing of the second recorder is restarted.

2. 发明专利

JPS60163249A REVERSING DEVICE OF TAPE 失效
公开(公告)号：JPS60163249A
公开(公告)日：1985-08-26
申请号：JP1511684
申请日：1984-02-01
申请人： HITACHI LTD
发明人： NEMOTO HISASHI
IPC分类号： G11B15/02 , G11B15/087
摘要： PURPOSE:To reverse assuredly a magnetic tape always at a fixed position without heat influence of external light by detecting a leader part of the magnetic tape on the basis of a reproducing noise difference and reversing the tape. CONSTITUTION:When the leader part of the magnetic tape reaches the opposite position of the rotary head 3, the reproducing noise level by the head 3 is reduced less than the reproducing noise level of a magnetic part. Consequently, the charging voltage of a capacitor 15 is reduced, a Zener diode 17 is turned off and a transistor 18 is also turned off. The leader part detecting output inverted to the low level is applied to a microcomputer 9 and the tape is reversed through a mechanical part control circuit 10. Said mechanism makes it possible to detect assuredly the leader part without heat influence of external light and reverse the tape always at the fixed position near the border between the magnetic part and the leader part.

3. 发明专利

JPS61168188A DOUBLE CASSETTE TAPE RECORDER 失效
公开(公告)号：JPS61168188A
公开(公告)日：1986-07-29
申请号：JP753285
申请日：1985-01-21
申请人： HITACHI LTD
发明人： SHIMAGAMI KAZUTO , NEMOTO HISASHI
IPC分类号： G11B27/02 , G11B27/10
摘要： PURPOSE:To perform sound recording operation associatively with music selecting operation at a playback side by bringing a playback side and a sound recording side tape recorder under the control of a microcomputer. CONSTITUTION:When a key 5 is pressed, a tape 1 is all rewound and when the 1st piece of music is detected, a timer 7 starts to perform playback operation for 10sec. Then the tape is fed fast to detect the 2nd piece of music and each head of music is reproduced for 10sec at each time. If a key 6 is pressed in the middle, the tape 1 is rewound up to the head D of the music and the reproduction of a tape 1 and the sound recording of a tape 2 are started at the same time. When the music comes to the end, the tape 1 is placed in index tracing operation again from next music. This operation is repeated to dub the contents of the tape 1 selectively and securely while only the head of music is listened to.

4. 发明专利

JPS59193563A Cassette detecting circuit 失效
标题翻译： CASSETTE检测电路
公开(公告)号：JPS59193563A
公开(公告)日：1984-11-02
申请号：JP6695283
申请日：1983-04-18
申请人： Hitachi Ltd
发明人： NEMOTO HISASHI
IPC分类号： G11B15/16 , G11B15/093 , G11B15/17
CPC分类号： G11B15/093 , G11B15/17
摘要： PURPOSE:To obtain an inexpensive cassette detecting circuit of a simple structure by making use of an incorporated pulse generator. CONSTITUTION:A pulse signal having the pulse width corresponding to the revolving speed of a reel drive disk is produced from a pulse generator 3 and supplied to a pulse width detecting means 8. This means 8 detects the number of seconds of the pulse width. This detection data is fed to a pulse width comparing means 9. The means 9 decides whether the data is larger than the minimum pulse width obtained when a cassette is loaded. If the data is larger than said pulse width, a deck mechanism is driven. While a fact that no cassette is loaded is decided if the data is smaller than the pulse width. Then the driving of the deck mechanism is stopped.
摘要翻译：目的：通过使用并入的脉冲发生器来获得简单结构的便宜的盒式磁带检测电路。构成：具有与卷盘驱动盘的转速对应的脉冲宽度的脉冲信号由脉冲发生器3产生并提供给脉冲宽度检测装置8.该装置8检测脉冲宽度的秒数。该检测数据被馈送到脉冲宽度比较装置9.装置9判定数据是否大于当盒式磁带被加载时获得的最小脉冲宽度。如果数据大于所述脉冲宽度，则驱动甲板机构。如果数据小于脉冲宽度，则确定没有装入盒式磁带的事实。然后停止甲板机构的行驶。

5. 发明专利

JP2002025183A VIDEO/SOUND RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JP2002025183A
公开(公告)日：2002-01-25
申请号：JP2000215875
申请日：2000-07-12
申请人： HITACHI LTD
发明人： WATANABE AKINOBU , YOSHIDA SUSUMU , HAYAKAWA HIROYUKI , ITO TAMOTSU , NEMOTO HISASHI
IPC分类号： G11B20/10 , G10L19/00
摘要： PROBLEM TO BE SOLVED: To quickly make a track shift to dubbing operation by pushing down a dubbing button during the reproduction of a CD in a video/sound recording and reproducing device. SOLUTION: When data at the head of the track during reproduction is stored in memory and the dubbing button is pushed down during the reproduction of the CD, a seek amount is reduced by starting reading from the position offset by the data quantity stored in the memory from the head position of the track during reproduction. Moreover, as soon as the dubbing button is pushed down, the data stored in the memory is started to be transferred for dubbing. Therefore, the time from the user operation to the start of dubbing is reduced so that user's waiting time is reduced.

6. 发明专利

JPS6180636A Information reproducing and recording device 失效
标题翻译：信息再现和记录设备
公开(公告)号：JPS6180636A
公开(公告)日：1986-04-24
申请号：JP20163384
申请日：1984-09-28
申请人： Hitachi Ltd
发明人： NEMOTO HISASHI , OKUBO EIJI , OISO KAZUMASA
IPC分类号： G11B15/02 , G11B7/28 , G11B19/02
摘要： PURPOSE: To improve the new function and performance by detecting that a cassette tape recorder is in the recording state to control the access time of an optical disc player.
CONSTITUTION: In operating a recording key of the cassette tape recorder, an operation key drive circuit 1 commands the recording state to a microcomputer circuit (CPU) 2. A synchro recording key drive circuit 3 placed exclusively is operated by the recording with a compact disc player and it is informed toa CPU 2, then a recorded output is outputted from the CPU 2 to a recording output terminal 4. It is inputted from a compact disc player input terminal 5, fed to an access control discrimination transistor 7 via a protection resistor 6 and inputted to the microcomputer circuit (CPU) 9 of the compact disc player via an output resistor 8. Then a control signal is outputted from the CPU 9 to the access control circuit 10 so as to control the access time from a conventional time (nearly 2sec) into nearly 4sec.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过检测盒式录音机处于录制状态来控制光盘播放器的访问时间，从而提高新功能和性能。构成：在操作盒式磁带录像机的记录键时，操作键驱动电路1将记录状态命令到微计算机电路（CPU）2。专门放置的同步记录键驱动电路3通过用光盘进行记录来操作播放器，并通知CPU2，然后将记录的输出从CPU2输出到记录输出端4.从光盘播放器输入端5输入，通过保护电阻馈送到访问控制鉴别晶体管7 通过输出电阻器8输入到光盘播放器的微计算机电路（CPU）9中。然后，控制信号从CPU9输出到访问控制电路10，以便控制从常规时间的访问时间（近2秒）变成近4秒。

7. 发明专利

JPS6154064A Cassette tape recorder 失效
标题翻译： CASSETTE磁带录音机
公开(公告)号：JPS6154064A
公开(公告)日：1986-03-18
申请号：JP17491284
申请日：1984-08-24
申请人： Hitachi Ltd
发明人： ICHIKAWA TAKASHI , IEGI KOICHI , NEMOTO HISASHI , YAMASHITA MASAO
IPC分类号： G11B15/43 , G11B15/46
摘要： PURPOSE: To stabilize the rotary performance at a constant speed travelling by constituting a supply voltage to a take-up driving motor controllably in accordance with a travelling position of tape at the constant speed travelling.
CONSTITUTION: Plural magnets 13 are connected in one body below reel gears 7, 8 on reel stands 5, 6 and the switching of a magnet pole by the rotation of the magnet 13 is detected by a magnetism sensitive element 14. A reel motor 9 does not have a governor controlling the number of rotation, and the number of rotation can be changed by changing a supply voltage, and the rotary torque can be changed by changing a voltage at a constant rotation. The rotary number of the reel stand is detected by receiving the pulse according to the switch of the magnet 13 and the pulse interval is received in digital and converted to an analog value by a D/A converter and the voltage is supplied by a driving circuit to the reel motor 9. Consequently, the fluctuation due to drive of a capstan and a pinch roller is decreased by changing a take-up tension in matching with the change of back tension just before a capstan 3 to stabilize the rotary performance.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过根据磁带在恒速行驶中的行进位置可控制地将卷绕驱动电机构成电源电压，以恒速行驶来稳定旋转性能。构成：多个磁体13一体地连接在卷轴架5,6上的卷轴齿轮7,8上，并且通过磁性敏感元件14检测磁体13的旋转而导致的磁极的切换。卷轴电机9 没有控制旋转次数的调速器，并且可以通过改变电源电压来改变旋转次数，并且可以通过改变恒定旋转时的电压来改变旋转转矩。通过接收根据磁体13的开关的脉冲来检测卷盘架的旋转数，并且脉冲间隔被数字地接收并由D / A转换器转换为模拟值，并且电压由驱动电路因此，通过改变与刚好在绞盘3之前的背张力的变化匹配的卷取张力来减小由于主导轴和夹送辊的驱动引起的波动，以稳定旋转性能。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式