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

JPS63281514A NON-SATURATION TYPE LOGICAL PULSE GENERATING CIRCUIT 失效
公开(公告)号：JPS63281514A
公开(公告)日：1988-11-18
申请号：JP11594587
申请日：1987-05-14
申请人： SONY CORP
发明人： EGUCHI TAKEO , TAKEKOSHI HIROBUMI
IPC分类号： H03K5/04 , H03K5/00 , H03K5/08 , H03K5/13 , H03K5/133 , H03K5/15
摘要： PURPOSE:To stably execute a logical action by integrating the final step pulse output of the logical gate circuit of a cascade connection and obtaining a reference bias necessary to the emitter function type logical circuit of a non- saturation type. CONSTITUTION:Logical gates C1-C10 of a ten steps cascade connection is formed with the EFL circuit of a non-saturation type to include a pair of transister QiA (i=1-10), QiB and a current source Si, A reference bias Vr of the about intermediate electric potential of two values to the gate and added to the base of respective elements QiA. The output of a final step Q11 of a logical gate circuit is integrated by an LPF4. When a delay time with the logical gate per step is tau a clock signal delayed with 10tau from a clock signal from an input terminal 1 can be obtained. When a non-saturation type logical gate is multi-step-connected, the duty ratio is changed by the little fluctuation or error of a reference bias value and a logical action comes to be instabe, however, a pulse wave shape to be generated in a rear step is integrated, the reference bias Vr near by the duty ratio 50% is automatically set and stabilized and a secure logical action can be executed.

2. 发明专利

JPS59112423A Manufacture of composite magnetic head 失效
标题翻译：复合磁头的制造
公开(公告)号：JPS59112423A
公开(公告)日：1984-06-28
申请号：JP22320782
申请日：1982-12-20
申请人： Sony Corp
发明人： EGUCHI TAKEO , TAKEKOSHI HIROBUMI , TAKEUCHI GIICHI
IPC分类号： G11B5/53 , G11B5/187 , G11B5/23 , G11B5/265 , G11B5/29
CPC分类号： G11B5/2651
摘要： PURPOSE:To reduce variations of a step difference by forming a composite magnetic head block by combining a ring core block in which a non-magnetic member is embedded at an equal interval in the joint part, through a non-magnetic separated layer, when combining a core half body block. CONSTITUTION:A degree of azimuth of gaps Ga, Gb can be set optionally by an angle of a cutting plane against joint parts 4a, 4b at the time of cutting. A gap pitch can be determined by the thickness of a part to be cut of ring core blocks 1a, 1b. Also, a step difference of the gaps Ga, Gb can be determined by adjusting the position matching in case of combining the ring core blocks 1a, 1b through a non-magnetic separated layer 7. Two composite magnetic heads 10 consisting of a recording magnetic head 1' and an erasing magnetic head 1'b which are obtained in this way are installed to a head base plate. As a result, variations of a parallel degree and a step difference between the gaps of each magnetic head are reduced, and the composite magnetic head can be mass- produced.
摘要翻译：目的：为了通过组合通过非磁性分离层以相等的间隔嵌入非磁性构件的环形芯块的组合形成复合磁头块，来减小阶梯差的变化，当组合时一个核心半身块。构成：间隙Ga，Gb的方位角可以任意地在切割时通过切割平面与接合部分4a，4b的角度来设定。间隙间距可以通过环形芯块1a，1b的待切割部分的厚度来确定。此外，可以通过在通过非磁性分离层7组合环形芯块1a，1b的情况下调整位置匹配来确定间隙Ga，Gb的阶梯差。由复合磁头10组成的复合磁头10由记录磁头 1'和以这种方式获得的擦除磁头1'b安装在头基板上。结果，减小了每个磁头的间隙之间的平行度和阶梯差的变化，并且可以大量生产复合磁头。

3. 发明专利

JPH08306003A SIGNAL RECORDING/REPRODUCING DEVICE AND ELECTRONIC EQUIPMENT 失效
公开(公告)号：JPH08306003A
公开(公告)日：1996-11-22
申请号：JP10620895
申请日：1995-04-28
申请人： SONY CORP
发明人： MARUI YUJI , TAKEKOSHI HIROBUMI
IPC分类号： G11B5/024
摘要： PURPOSE: To provide a signal recording/reproducing device capable of erasing an information signal by an erase head without occupying a space so much and to provide an electronic equipment. CONSTITUTION: A switch 3 is provided. Then, a resonance circuit constituted of a capacitor 6 of capacitance C(F), a coil 7 of inductance L(H) and the inductance L1 (H) of the erase head 4 is switched with a resonance circuit constituted of the capacitor 6 of the capacitance C(F), the coil 7 of the inductance L(H), the inductance L1 (H) of the erase head 4 and the inductance L2 (H) of the erase head 5 by the switch 3.

4. 发明专利

JPH0471396B2 失效
公开(公告)号：JPH0471396B2
公开(公告)日：1992-11-13
申请号：JP6335283
申请日：1983-04-11
申请人： SONY CORP
发明人： UEDA MAMORU , TAKEKOSHI HIROBUMI
IPC分类号： G11B27/024 , H04N5/91 , H04N5/92

5. 发明专利

JPH04314229A DIGITAL DATA EXTRACTION DEVICE 失效
公开(公告)号：JPH04314229A
公开(公告)日：1992-11-05
申请号：JP7996391
申请日：1991-04-12
申请人： SONY CORP
发明人： EGUCHI TAKEO , TAKEKOSHI HIROBUMI
IPC分类号： G11B20/14 , H03L7/08 , H04L7/033
摘要： PURPOSE:To minimize an error rate at data extraction without using a delay line or the like for the adjustment. CONSTITUTION:An input data Din is fed to a timing circuit 2, from which a timing pulse Pt is obtained. The pulse Pt and a noninverting oscillation output Po+ of a VCO 5B are compared by a phase comparator 4 and its error voltage is fed to the VCO 5B as a control voltage via a low pass filter 6 and a DC amplifier 7. The input data Din is fed to a DFF 3 via a delay circuit 8 and a data Dout is extracted by using an inverting oscillation output Po- of the VCO 5B as a clock CK. The duty ratio of the oscillating outputs Po+, Po- is varied by adjusting a slider of a variable resistor VR1 of the VCO 5B to adjust the extraction timing. The error rate at extraction is minimized without use of a delay line or the like.

6. 发明专利

JP2001243604A RECORDING CIRCUIT 失效
公开(公告)号：JP2001243604A
公开(公告)日：2001-09-07
申请号：JP2000056031
申请日：2000-02-28
申请人： SONY CORP
发明人： KANEMOTO YOSHITAKA , NOCHIDA KAORU , TAKEKOSHI HIROBUMI
IPC分类号： G11B5/09 , H03F3/45
摘要： PROBLEM TO BE SOLVED: To provide a recording circuit which can reduce an influence due to the variation of a magnetic head, attaches a 'whisker' to a recording current and can prevent the peak shift of a regenerative signal with low power consump tion. SOLUTION: A 1st differential circuit consisting of transistors Q1 and Q2 generates a recording current Iw in the magnetic head MHD in accordance with a differential input signal. A 2nd differential circuit consisting of transistors Q3 and Q4 is connected in parallel to the 1st differential circuit, a large collector current Ic1 is outputted just after the transistor Q1 is made to conduct, the recording current Iw of the magnetic head is sharply started, the 2nd differential circuit switches states after prescribed delay time, the collector current Ic1 of the transistor Q4 is supplied to the magnetic head, and the recording current Iw generated in the magnetic head is reduced and held to a fixed value. Because a reverse recording current Iw is generated in the magnetic head in the next half period, a 'whisker' having fixed amplitude and width in the rise and fall of the recording current can be generated to prevent the peak shift of the regenerative signal.

7. 发明专利

JPH0869605A QUANTIZATION FEEDBACK CIRCUIT 失效
公开(公告)号：JPH0869605A
公开(公告)日：1996-03-12
申请号：JP20553394
申请日：1994-08-30
申请人： SONY CORP
发明人： KOBAYASHI NOBUYOSHI , HARA MASAAKI , TAKEKOSHI HIROBUMI
IPC分类号： G11B5/09 , G11B20/10
摘要： PURPOSE: To obtain a quantization feedback circuit capable of well reproducing the low frequency range components of ternary analog signals in which the low frequency range components are lost. CONSTITUTION: The RR-I equalization signal from an equalizer 12 is supplied as a ternary equalization signal to comparators 19, 20 constituting a ternary level identifying means via an analog adder 18. The output of this comparator 19 attains a '1' when the ternary equalization signal is higher than the threshold voltage + Eth. The output attains a '0' in other cases. On the other hand, the output of the comparator 20 attains a '1' when the ternary equalization signal is lower than the threshold voltage - Eth and the output attains a '0' in other cases. The output signal of these comparators 19, 20 are ORed and are led out as reproducing data to an output terminal 24. The outputs of the compartors 19, 20 are supplied to a differential amplifier 2 as a ternary analog signal restoring means. The low frequency components are extracted by a low-pass filter 23 by the restored ternary analog signals and the ternary equalization signal is formed by adding these components to the output of the equalizer 12 by an adder 18.

8. 发明专利

JPH0544083B2 失效
公开(公告)号：JPH0544083B2
公开(公告)日：1993-07-05
申请号：JP26039784
申请日：1984-12-10
申请人： SONY CORP
发明人： EGUCHI TAKEO , OGAWA TETSUO , TAKEKOSHI HIROBUMI
IPC分类号： G11B27/36 , G11B5/09 , G11B5/53 , H04N5/91 , H04N5/92

9. 发明专利

JPH08306023A SIGNAL REPRODUCING DEVICE AND PORTABLE VIDEO TAPE RECORDER 失效
公开(公告)号：JPH08306023A
公开(公告)日：1996-11-22
申请号：JP10620995
申请日：1995-04-28
申请人： SONY CORP
发明人： MARUI YUJI , TAKEKOSHI HIROBUMI
IPC分类号： H04N5/93 , G11B5/027 , G11B5/53
摘要： PURPOSE: To provide a signal reproducing device and a portable video tape recorder capable of performing a noise measure without occupying a much space. CONSTITUTION: Only a noise N2 mixed into a dummy head 33 is inversion outputted and added to an analog sound signal S1 loading a non-inversion output noise N1 . Thus, the non-inversion output noise N1 is added to the inversion output noise N2 , and only the noise components N1 , N2 are canceled. Thus, only the analog sound signal S1 removed with the noise components N1 , N2 is outputted.

10. 发明专利

JPS61139905A Rotary magnetic head device of digital video/audio recording device 失效
标题翻译：数字视频/音频录制设备的旋转磁头设备
公开(公告)号：JPS61139905A
公开(公告)日：1986-06-27
申请号：JP26039784
申请日：1984-12-10
申请人： Sony Corp
发明人： EGUCHI TAKEO , OGAWA TETSUO , TAKEKOSHI HIROBUMI
IPC分类号： G11B27/36 , G11B5/09 , G11B5/53 , H04N5/91 , H04N5/92
摘要： PURPOSE: To use in common a channel of a rotary transformer by providing a rotary magnetic head for preceding reproduction which precedes a rotary magnetic head for recording, and switching each output of this head and a rotary magnetic head for confirming reproduction.
CONSTITUTION: A rotary magnetic head A (A
1 WA
4 ) for preceding reproduction scans a sound track part of an inclined track of a magnetic tape and reproduces its digital sound signal. The head A precedes by a prescribed angle against a rotary magnetic head R (R
1 WR
4 ) for recording so that the maximum time required for a signal processing of the digital sound signal which has been reproduced by the head A can be secured. Each reproducing signal from the head A and a rotary magnetic head C (C
1 WC
4 ) for confirming reproduction is amplified 2, 3, respectively, and thereafter, supplied to changeover switches 4, 5, and supplied to a primary coil 7a of a rotary transformer 7 of a channel in which an output of one of the switches 4, 5 exists by a controlling circuit 6. In this way, the transformer 7 can be used in common, and the signal processing can be executed without increasing the number of channels of the rotary transformer.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在旋转磁头之前提供用于记录的旋转磁头，并且切换该头部的每个输出和用于确认再现的旋转磁头，来共同使用旋转变压器的通道。构成：用于先前再现的旋转磁头A（A1-A4）扫描磁带的倾斜轨道的声轨部分并再现其数字声音信号。磁头A相对于用于记录的旋转磁头R（R1-R4）前进一个规定角度，从而可以确保由磁头A再现的数字声音信号的信号处理所需的最大时间。来自头A的每个再现信号和用于确认再现的旋转磁头C（C1-C4）分别放大2,3，然后被提供给转换开关4,5，并被提供给旋转的第一线圈7a 通过控制电路6存在开关4,5之一的输出的通道的变压器7.以这种方式，变压器7可以共同使用，并且可以在不增加通道数的情况下执行信号处理的旋转变压器。

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