公开(公告)号：JP2000311443A

公开(公告)日：2000-11-07

申请号：JP12026399

申请日：1999-04-27

Applicant: SONY CORP

Inventor： AKITA MASAYOSHI ,  HASHIMOTO TOSHIYUKI ,  FUKUDA SHINICHI ,  SAKAMOTO SHIGEMI

IPC: G11B20/10

Abstract: PROBLEM TO BE SOLVED: To correctly perform decoding such as Viterbi decoding without any adverse influence of disorder of reproduced data when data reproduced from a magnetic tape, etc., are processed. SOLUTION: This processor is equipped with a sampling means 4 which samples reproduced data, a quality decision means 10 which decides whether or not the eye pattern of the data sampled by a sampling means 4 is good, and a decoding means 5 which decodes the data sampled by the sampling means 4 by using the quality decision result obtained by the decision means 10.

公开(公告)号：JPH0265492A

公开(公告)日：1990-03-06

申请号：JP21667688

申请日：1988-08-31

Applicant: SONY CORP

Inventor： IKEDA TAMON ,  HASHIMOTO TOSHIYUKI ,  OTOMO SUMIO

IPC: H04N17/06 ,  G11B33/10

Abstract: PURPOSE:To display a fault content at repair and to facilitate the repair by storing the fault content in a memory backed up by a power supply. CONSTITUTION:A memory 8 consists of a RAM(random access memory), in which a fault content is written and a power supply of a battery 1 is supplied thereto and a battery 10 for a clock 9 is used as a backup power supply. In the case of recording mode, for example, if a drum frequency generator of a drum servo system circuit 3 gives no output on its way, a microcomputer 6 discriminates it as a fault of the drum frequency generator and the fault content is displayed on the display section 7 and stored in the memory 8. Thus, in the case of a fault, the user carries only the camera main body 2 to a service shop, then the service shop uses a service commander 12 to read the storage content of the memory 8 and the result is displayed on an LCD 13. Thus, the repair is facilitated.

公开(公告)号：JPH0260394A

公开(公告)日：1990-02-28

申请号：JP21188488

申请日：1988-08-26

Applicant: SONY CORP

Inventor： HASHIMOTO TOSHIYUKI ,  ENDO KATSUMI ,  MATSUNO KATSUMI ,  IKEDA TAMON ,  OTOMO SUMIO ,  TAKEMURA AKIO

IPC: H04N17/06 ,  G11B33/10

Abstract: PURPOSE:To recognize a defect, which occurs during the use of a user, at the time of service by supplying the signal indicating an abnormal state from an electronic apparatus to a controller in response to the request from the controller and displaying this signal. CONSTITUTION:When a counter reset button 23 of the controller like a wired remote controller 2 is depressed, a clear instruction is sent to the electronic apparatus like an 8mm VTR 1 through a bidirectional bus line 3. Contents of the latest defect stored in a memory are cleared, and the display on a display part 25 of the remote controller 2 is cleared also. When a rewind button 21 is depressed, a back instruction is sent, and the status display in the service mode on the remote controller 2 retrogresses. When a fast-forwarding button 22 is depressed, a next instruction is sent, and the status display in the service mode on the remote controller 2 progresses. Thus, contents of the defect can be confirmed not only just after the occurrence of the defect but also in the future, and the defect which occurs during the use of the user is recognized by service.

公开(公告)号：JPS61105754A

公开(公告)日：1986-05-23

申请号：JP22541184

申请日：1984-10-26

Applicant: Sony Corp

Inventor： HASHIMOTO TOSHIYUKI ,  FUJIKAWA MITSUNORI

IPC: G11B15/08

Abstract: PURPOSE: To detect satisfactorily leading and trailing ends of magnetic tape even if a magnetic substance of the tape is flaked off or the travel speed of the tape fluctuates by changing the period of a sampling pulse in accordance with the travel speed of the magnetic tape.
CONSTITUTION: The device 7 detects the travel speed of the magnetic tape, and the sampling pulse of a prescribed period is outputted from a generator 8 corresponding to a travel speed pulse in accordance with this detected travel speed. Thus, the leading and trailing ends are decided irrespective of the tape travel speed, and a signal from a system control circuit 11 changes an operation mode. Only when the counting which corresponds to a prescribed set value is obtained in succession, a control signal for stopping the tape travel is supplied to the circuit 11. Although a light beam reaches a photo transistor 1 due to the flaking of the magnetic layer off the tape, the counting will not be carried out up to the prescribed set value, thus avoiding erroneous detection.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：通过根据磁带的移动速度改变采样脉冲的周期，即使磁带的磁性物质被剥离或磁带的行进速度变化，也能够检测磁带的令人满意的前端和后端。 构成：装置7检测磁带的行进速度，根据该检测出的行驶速度，从与行驶速度脉冲对应的发电机8输出规定期间的采样脉冲。 因此，与磁带行进速度无关地确定前端和后端，来自系统控制电路11的信号改变操作模式。 只有当连续获得对应于规定的设定值的计数时，才将用于停止磁带行进的控制信号提供给电路11.虽然光束由于磁性层的剥离而到达光电晶体管1， 磁带，计数不会达到规定的设定值，从而避免错误检测。

公开(公告)号：JPS6177159A

公开(公告)日：1986-04-19

申请号：JP19988284

申请日：1984-09-25

Applicant: Sony Corp

Inventor： HASHIMOTO TOSHIYUKI

IPC: G11B15/467 ,  H04N5/782 ,  H04N5/7826

Abstract: PURPOSE: To prevent the end of the recording part at a joint from narrowing down in track width by making a shift in tracking position in a faster tape speed direction so that the end part of a recording track at the side in a tape traveling direction coincides with the end part of a rotary head at the end part in a gap width direction.
CONSTITUTION: When a joint is found in a normal reproduction state and a recording pause is turned on, the output signal PO of a pause signal generating circuit 41 rises and the current states of signals SL
1 and SL
2 of a switch control circuit 40 are stored at this time. When the pause is reset, the output signal PO of a pause signal generating circuit 41 falls and the control signals SL
1 and SL
2 from a switch control circuit 40 vary even a period (a) after the falling and rising points. Consequently, a tracking phase is advanced so as to align the breadthwise end part of a recording track to the breadthwise end part of a rotary head gap, so the disadvantage of a decrease in the track width of the final track among recorded tracks of a join is eliminated.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：通过在更快的磁带速度方向上进行跟踪位置的移动来防止记录部分在关节处的结束，使其在磁道宽度上变窄，使得磁带行进方向侧的记录磁道的端部一致 其端部的旋转头的端部在间隙宽度方向上。 构成：当在正常再现状态下发现接头并且打开记录暂停时，暂停信号发生电路41的输出信号PO上升，开关控制电路40的信号SL1和SL2的当前状态被存储在 这次。 当暂停复位时，暂停信号发生电路41的输出信号PO下降，并且来自开关控制电路40的控制信号SL1和SL2甚至在下降和上升点之后的周期（a）变化。 因此，跟踪阶段被提前以将记录轨道的宽度方向的末端部分对准旋转磁头间隙的宽度方向的末端部分，因此缺陷是在连接的记录磁道中的最终磁道的磁道宽度减小 被淘汰。

公开(公告)号：JPS6139259A

公开(公告)日：1986-02-25

申请号：JP15803684

申请日：1984-07-27

Applicant: Sony Corp

Inventor： BABA HIROMITSU ,  KAMOSHITA SHINGEN ,  HASHIMOTO TOSHIYUKI

IPC: G11B15/665

Abstract: PURPOSE: To reduce damage of a tape and slack of the tape and the loading time by switching the drive of a loading motor into PWM drive on the way and then applying pulse drive further.
CONSTITUTION: When a loading mode is started, a loading motor 15 is driven at first at a constant speed and whether or not the 1st prescribed position (a) is detected is discriminated by a rotary encoder 17. The 1st prescribed position (a) is near alternate long and short dash lines (a) and when the 1st prescribed position (a) is detected, the PWM drive is executed. Further, whether or not the 2nd prescribed position (b) is detected is discriminated by a rotary encoder 17. The 2nd prescribed position (b) is a position shown in alternate long and two short dashes lines (b) just before the loading is finished and when the position (b) is detected, the pulse drive is applied. When the pulse drive reaches a prescribed number of revolutions, the loading motor 15 is stopped and the mode is finished.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：为了减少磁带的松动和加载时间，通过将加载电机的驱动器切换到PWM驱动器中，然后进一步施加脉冲驱动。 构成：当开始装载模式时，首先以恒定的速度驱动装载电动机15，并且由旋转编码器17识别第一规定位置（a）是否被识别。第一规定位置（a）是 接近交替长短划线（a），当检测到第一规定位置（a）时，执行PWM驱动。 此外，是否检测到第二规定位置（b）是否被旋转编码器17区分。第二规定位置（b）是在加载完成之前以交替的长和两条短划线（b）示出的位置 并且当检测到位置（b）时，施加脉冲驱动。 当脉冲驱动器达到规定转数时，装载电动机15停止并且模式结束。

公开(公告)号：JPS6132245A

公开(公告)日：1986-02-14

申请号：JP15346284

申请日：1984-07-24

Applicant: Sony Corp

Inventor： BABA HIROMITSU ,  HASHIMOTO TOSHIYUKI ,  KAMOSHITA SHINGEN

IPC: G11B15/02 ,  G11B15/00 ,  G11B15/08

Abstract: PURPOSE: To stop the head of a magnetic tape at a specific position by running a magnetic tape in a normal direction when the leader part provided to the head of the magnetic tape is detected while the magnetic tape travels in the reverse direction, and stopping its run when the boundary between the magnetic tape and leader part reaches a detection position.
CONSTITUTION: A hole into which a light emitting element is inserted is formed at a position a little close to the opening part in the middle of reels 2S and 2T of a cassette 1, and the transparent leader tape is provided at least to the head part of a tape 3. Then, light emitted by the light emitting element 30 inserted into the hole is photodetected by a photodetector 31 through a transparent window provided to the leader tape and a side wall of the cassette 1. Therefore, when the boundary o the magnetic tape 3 and leader tape reaches an alternate long and short dash line connecting the light emitting element 30 and a photodetector 31, that is detected. Further, when the leader tape 3L reaches an optical path, that is detected by the photodetector 31 to generate a tape top signal, which is supplied to the interruption terminal of a microcomputer 41 which performs system control.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：当磁带沿相反的方向行进时，当检测到提供给磁带头部的引导部分时，通过在正常方向上运行磁带来将磁带的头部停止在特定位置，并停止其 当磁带和引导部分之间的边界到达检测位置时运行。 构成：在与盒1的卷筒2S和2T中间的开口部分稍微靠近的位置处形成有插入有发光元件的孔，透明导线带至少设置在头部 然后，由插入孔中的发光元件30发出的光由光电检测器31通过设置在引导带的透明窗口和盒1的侧壁被光检测。因此，当边界 磁带3和引导带到达连接发光元件30和检测到的光电检测器31的交替的长短虚线。 此外，当引导带3L到达由光电检测器31检测以生成提供给进行系统控制的微计算机41的中断端的带顶信号的光路时。