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    • 1. 发明专利
    • SPEAKER DEVICE
    • JPH10285677A
    • 1998-10-23
    • JP10400197
    • 1997-04-08
    • ASCII CORP
    • KANEKO ITARU
    • H04R1/02H04R1/28
    • PROBLEM TO BE SOLVED: To provide a speaker device with the excellent reproduction efficiency of low-frequency sound regardless of being convenient for carrying. SOLUTION: A speaker 1 is fixed to a container connector 2 and a damper 3 is adhered to the lower surface of the container connector 2. When this speaker device is mounted on a container 4, the lower surface of the damper 3 and the port edge 41 of the container 4 are tightly adhered and freely detachably fixed. Thus, since the container connector and the container 4 constitute a tightly sealed baffle, the speaker device efficiently reproduces the low-frequency sound. For the container, a dust box or a can or the like, for instance, is sufficient and it is sufficient to obtain it in a place to use it. After use, only the speaker device is detached and carried.
    • 3. 发明专利
    • STORAGE DEVICE
    • JPH0498553A
    • 1992-03-31
    • JP21651190
    • 1990-08-17
    • ASCII CORP
    • KINOSHITA MOTOYAKANEKO ITARUYAMASHITA RYOZO
    • G06F12/14G06F21/24G09C1/00
    • PURPOSE:To keep the secrecy of data by converting the stored 1st data into the 2nd data to store this data with the 3rd data and outputting the 1st data when the prescribed relations are secured in the prescribed frequency. CONSTITUTION:When the address information AD is supplied from a host com puter, a ROM 1 supplies the address contents shown by the AD to a random number generating circuit 5, etc., as the data D1. The circuit 5 generates sequen tially the random numbers synchronously with a clock signal CLKX and outputs these random numbers as the data D2. If a signal KEYINJ is equal to '1', the data D2 is obtained with the prescribe conversion applied to the data D1. A comparator 4 compares the D2 with the data D3 supplied from the host com puter and outputs a signal PM kept at '1' when the coincidence is secured between both data. Then the D1 is never outputted unless the signals PM of level '1' are outputted from the comparator 4 in the prescribed frequency.
    • 8. 发明专利
    • COLOR DISPLAY DEVICE
    • JPH01177587A
    • 1989-07-13
    • JP168588
    • 1988-01-07
    • ASCII CORP
    • ISHII TAKATOSHIOGUCHI TETSUJIKISHIOKA KAZUYAKANEKO ITARU
    • G09G5/00G09G1/00G09G1/02G09G5/02G09G5/04G09G5/10G09G5/36
    • PURPOSE:To reduce the memory capacity of the title device and to suppress influence of conversion error by operating each average value of color difference data to store it in a memory and using red-luminance color difference data and green-luminance color difference data. CONSTITUTION:A converting means 5 which converts color information indicating respective colors of dots to luminance data Y, 'red-luminance' color difference data U, and 'green-luminance' color difference data W, a calculating means which calculates respective average values of color difference data U and W for every plural dots, and a writing means 20 which writes average values of color difference data U and W and luminance data Y in a memory (video RAM) 21 are provided. That is, since respective average values of color difference data U and W are calculated and are stored in the memory 21, one data is stored per four dots if the average value is calculated for every four dots, and the memory capacity is reduced. Since 'red-luminance' color difference data U and 'green-luminance' color difference data W are used, the conversion error is concentrated on blue and the influence of the conversion error is minimized.