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    • 51. 发明专利
    • LENS COVER IN VTR INCORPORATED CAMERA
    • JPS63311878A
    • 1988-12-20
    • JP14705287
    • 1987-06-15
    • HITACHI LTD
    • NODA KOSAKUNAKASUNA NARIYASUABE YUHEI
    • H04N5/225H04N5/232
    • PURPOSE:To attain closing motion of a lens cover by a hand gripping a camera by applying switch operation to attain the closing motion of the lens cover and the control of the operation of a VTR part of the camera altogether. CONSTITUTION:A driver for a motor 6 or the like and a remote control button 3 are used to slide the lens cover 2 and the remote control button 3 is arranged to a range reached by a finger of a right hand holding the camera during photographing. When a photographer desires to start the photographing and the closing motion button of the lens cover 2 is depressed at first, the lens cover covering the front face of the lens is opened, the power supply 17 of the camera is applied and the camera is brought into the video recording pause state. When the photographer desires to stop the photographing and the button is depressed once more, the power supply 17 of the camera is to the preceding direction and the lens cover 2 covers the front face of the lens. Thus, the lens cover closing motion button can be used for opening and closing states in common.
    • 52. 发明专利
    • PICTURE RECORDING CIRCUIT FOR TIMER OF VTR
    • JPS61294654A
    • 1986-12-25
    • JP13405285
    • 1985-06-21
    • HITACHI LTD
    • ABE YUHEI
    • G11B15/02H04N5/76H04N5/782H04N5/7826
    • PURPOSE:To set a recording speed in reserved operation during a timer is reserved by providing a means which inputs recording tape speed information during the reserved operation of a timer circuit, and an output means which controls a tape speed during reserved operation. CONSTITUTION:When timer reserving operation is performed, reservation infor mation is inputted to a timer microcomputer 2 through a time setting input circuit 3, a channel setting circuit 4, and a speed setting input circuit 5. The information stored in the timer microcomputer 2 is sent to the recording and reproduction system 1 of VTR at reserved time and a motor control circuit 7 controls a motor part 9 according to the information to control the tape speed. Consequently, the VTR performs recording at the desired tape speed to attain the purpose. Tape speed setting input SWs 13, 14, and 15 correspond to, for example, a standard, a 1/2, and a 1/3 speed and a necessary tape speed is set during the reserving operation by using those input SWs 13-15. The timer microcomputer 2 sends out a control output during reserved operation.
    • 56. 发明专利
    • IC CARD READER AND WRITER
    • JPH10187894A
    • 1998-07-21
    • JP34862196
    • 1996-12-26
    • HITACHI LTD
    • ITO MAKIABE YUHEI
    • G06K17/00
    • PROBLEM TO BE SOLVED: To prevent the easy gathering of dust, etc., and also to easily discharge the dust, etc., if gathered to the outside by compressing light the air in an IC card reader/writer main body and then discharging the compressed air to the outside concurrently with opening a door when an IC card is inserted. SOLUTION: An IC card reader/writer has a reader/writer main body 10 and an air pump 60 which is connected to the main body 10 via a pipe 62. A card reception part 20 includes a space 40 where an IC card 100 is received, and a door 30 is supported at a card slit 22 in a free lockable way via a hinge 32. The pump 60 is linked to the space 40 via a pipe 62 to supply the compressed air of a low level to the space 40 via the pipe 62. Then the tip of the card 100 is put into the slit 22, and the compresses air flows out of the space 40 through the slit 22 as an air flow A when the door 30 is opened.
    • 60. 发明专利
    • DISPLAY UNIT FOR MAGNETIC RECORDING AND REPRODUCING DEVICE
    • JPS63316394A
    • 1988-12-23
    • JP15113487
    • 1987-06-19
    • HITACHI LTD
    • MATSUMOTO HIROYOSHIABE YUHEI
    • H04N17/06G11B33/10
    • PURPOSE:To enable the user to take correct measures by detecting trouble, improper working and an operational error of every part, deciding the cause and its place, etc., and reading out data from a storage means by a selecting means in accordance with the result of this decision and sending it as a video signal. CONSTITUTION:A system controller 9 receives data from detecting sensors 4-6, a servo controller 7 and a timer 8, and checks them individually to decide as to the trouble, improper working or the user's operational error even or the normal condition and then sends it to an on-screen display unit 10. On the other hand, a display sentence for displaying the result of decision such as the trouble, improper working and operational error of each data of the detecting sensors 4-6, servo controller 7 and timer 8 is stored in a memory 11. Whereas the on-screen display unit 10 reads out the respective display sentence from the memory 11 in relation to the result of every decision from the system controller 9 and sends it to an image receiver 13 via an image processor 12. By this method, the sentence indicating the trouble, improper working or operational error on every part in the titled magnetic recording and reproducing device 1 is therefore displayed.