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    • 4. 发明专利
    • PORTABLE TELEPHONE SET
    • JPH10200620A
    • 1998-07-31
    • JP249897
    • 1997-01-10
    • NIPPON TELEGRAPH & TELEPHONE
    • SUZUKI YOSHITAKENISHINO YUTAKASHIMAMURA YOSHIE
    • H04M1/23H04M1/27H04M1/274
    • PROBLEM TO BE SOLVED: To provide the small-sized telephones set with equiperior carrying performance and few operation buttons. SOLUTION: When a 'dial' button 14 is depressed in an incoming call waiting state, the mode transits to a dial number entry state. A control section 16 reads an displays dial number dialed in the past from a dial history memory 17. If there are a plurality of the dial numbers, the telephone numbers are sequentially displayed via the depression of the 'dial' button 14. If a 'speech' button 13 is depressed, the displayed dial number is dialed to attain a speech. When no dial number is available or there are no longer other dial numbers to be displayed, the mode transits to a one-digit entry state. When the 'dial' button 14 is depressed, the control section 16 sequentially displays numbers for every depression of the dial button and confirms the displayed numeral, when the depression is stopped and moves a cursor to a next digit. When the 'speech' button 13 is depressed after all the digits have been entered, the entered numeral string is dialed to attain a speech.
    • 9. 发明专利
    • TRANSMITTER/RECEIVER FOR USING EARPLUG-SHAPED TRANSDUCER
    • JPH07312634A
    • 1995-11-28
    • JP10376694
    • 1994-05-18
    • NIPPON TELEGRAPH & TELEPHONE
    • MATSUMOTO KOICHINISHINO YUTAKAYUSE CHIKARAMIHASHI KAZUMASA
    • H04R1/00H04M1/05
    • PURPOSE:To improve sharpness/mounting property and to enable use even under high noise by varying the loss of first and second variable loss circuits corresponding to the outputs of first and second frequency characteristic correcting circuits under the control of a comparator circuit. CONSTITUTION:An acceleration pickup 1-4 for collecting bone-conducted sounds and a directional microphone 1-5 for collecting airway sounds are provided with directional characteristics for improving sensitivity in the direction of a mouth (a projecting part 1-3) so as to efficiently collect the airway sound. In this case, sounds mixing the bone-conducted sounds with the airway sounds are utilized as transmitting sounds. Concerning that mixture, the bone-conducted sounds mainly composed of low frequency components and the airway sounds mainly composed of high frequency components are utilized, and the ratio of mixture is varied corresponding to the level of surrounding noise or foreign sounds collected by the pickup 1-4. Thus, the device can be used even under high noise, and the feeling of incompatibility caused by low sharpness or foreign sounds can be removed while effectively utilizing the merit of transmission using the bone-conducted sounds of enabling hands free speaking.
    • 10. 发明专利
    • DATA PROCESSOR WITH DISPLAY CONTENTS CONCEALING FUNCTION
    • JPH0651731A
    • 1994-02-25
    • JP20582592
    • 1992-08-03
    • NIPPON TELEGRAPH & TELEPHONE
    • YAMASHINA MASAKIYUMURA YASUONISHINO YUTAKA
    • G09G5/00G06F17/21G09G5/02G06F15/20
    • PURPOSE:To provide the function which can conceals display contents from a 3rd person by displaying a background in two colors changing to close color vision and characters and a graphic in a display color changing into a color close to the background color at a fine visual angle and viewing the display contents through a filter. CONSTITUTION:A shift limit pixel number counting part 2 counts the size of a shift limit pixel block of the same color according to the resolution of a display part 1 and a visual angle where a color sensation shift is caused. A background display control part 3 controls a memory 5 so as to display two colors C1 and C2 with which the background part shifts to visually close color sensation by the shift limit number of pixels. A character and graphic display control part 4 displays the characters and graphics in the display color C3 shifting to color sensation visually close to the C1 and C2. Further, when the size of the pixel block of the C3 exceeds a shift limit pixel block, the memory 5 is so controlled as to replace pixels adjacent to the change limit pixel among the pixels of C3 with C1 or C2. The filter suppress transmissivity within the range of wavelength longer than the C1 and C2 and shorter than the C3.