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85. 发明专利

JPH0442870B2 失效
公开(公告)号：JPH0442870B2
公开(公告)日：1992-07-14
申请号：JP32574187
申请日：1987-12-23
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKENAKA SHINYA
IPC分类号： H01L27/14 , H01L27/148 , H04N5/335 , H04N5/341 , H04N5/345 , H04N5/374 , H04N5/376

86. 发明专利

JPH0464187A BAR CODE READER 失效
公开(公告)号：JPH0464187A
公开(公告)日：1992-02-28
申请号：JP17556690
申请日：1990-07-02
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKENAKA SHINYA
IPC分类号： G06K7/10 , G06K7/14
摘要： PURPOSE:To improve the workability of data input by prohibiting recognition processing until a time when a scanning line traverses all the bars and/or space arrives. CONSTITUTION:A counter means 12 counts the number of bars and/or space operated at every scan of a bar code, and a count value is supplied to and stored in a bar number storage means 13. The count values of the counter means 12 in accordance with two times of scan stored in the bar number storage means 13 are compared by a first comparison means 14, and when the count value in succeeding scan out of two times of scan is less than the one in preceding scan, a permission signal is derived to a line 15. A recognition means 16 reads out a scan signal in accordance with the preceding scan out of the scan signals in two times of scan stored in a scan signal storage means 11, and performs the recognition processing of the bar code. In such a way, it is possible to improve working efficiency in data input work by bar code reading.

87. 发明专利

JPH0454580A AUTOMATIC GAIN CONTROL CIRCUIT 失效
公开(公告)号：JPH0454580A
公开(公告)日：1992-02-21
申请号：JP16357990
申请日：1990-06-21
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKENAKA SHINYA
IPC分类号： G06K9/20 , H03G3/20 , H03G3/30
摘要： PURPOSE:To satisfactorily read the symbols after the regular reflected light is made incident on a detecting element by resetting the peak holding level of a peak holding circuit when the peak holding level exceeds the prescribed reference value. CONSTITUTION:The output signal of a variable gain amplifier 10 is applied to a peak holding circuit 20, and the output signal of the circuit 20 is inputted to the circuit 10 as a control signal which controls the gain of the circuit 10. A reset circuit 30 is connected to the circuit 20 to reset the peak holding level of the circuit 20. Thus it is possible to evade such a case where the gain of the amplifier 10 is kept extremely reduced even if the output signals of a detecting element are temporarily increased due to the light reflected regularly from the symbol surface. As a result, a normal reading state is quickly reset even though the light reflected regularly from the symbol surface is received by the detecting element.

88. 发明专利

JPH03222021A PORTABLE INFORMATION PROCESSOR 失效
公开(公告)号：JPH03222021A
公开(公告)日：1991-10-01
申请号：JP1758890
申请日：1990-01-26
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKENAKA SHINYA
IPC分类号： G06F15/02 , G06F3/02 , G06F3/023 , H03M11/14
摘要： PURPOSE:To improve the work efficiency of data input and to shorten the input time of data by selecting the key function of a key input part by means of one hand holding a case while a key input operation from the key input part is executed by means of the other hand. CONSTITUTION:A ten key group 26 for inputting respective numbers of '0'-'9', a clear key 27 for eliminating the display of a display part 25 and an input key 28 for inputting data are provided for the key input part 21. The numbers of '0'-'9' and the alphanumerics of 'P'-'Y' are respectively and doubly allocated to respective keys of the ten key group 26. When a shift key 24 is pressing- operated in the direction of an arrow 29, English characters are inputted by the pressing operation of respective keys in the ten key group 26 and the numbers are inputted by the operation of respective keys of the key group 26 in a state where the key 24 is released. An English character 'Z' is doubly allocated to a carrier key 27 and a blank input space is doubly allocated to the input key 28, whereby 'Z' and the blank are respectively inputted by the pressing operation of the key 24.

89. 发明专利

JPH03214279A SYMBOL READING DEVICE 失效
公开(公告)号：JPH03214279A
公开(公告)日：1991-09-19
申请号：JP33455389
申请日：1989-12-22
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKENAKA SHINYA
IPC分类号： G06K7/10 , G06K7/015
摘要： PURPOSE:To automatically read the symbols with high accuracy in a wide range reading distances by providing a 1st position adjusting means to change the distance between a light source and a 1st condenser lens in accordance with the distance between a 2nd condenser lens and a 2nd photoelectric transducer. CONSTITUTION:The two light L1 and L2 transmitted through a light selection/ transmission member 12 form the images at the same position via a one- dimensional photoelectric transducer 15. Under such conditions, a reading dis tance is calculated from the distance between a 2nd condenser lens 13 and the transducer 15. Based on this reading distance, a 1st condenser lens 2 is displaced along its optical axis and the laser light L is converged on a symbol surface 8. Thus a bar code 7 can be read in a wide reading range and with high accuracy.

90. 发明专利

JPH0341585A BAR CODE READER 失效
公开(公告)号：JPH0341585A
公开(公告)日：1991-02-22
申请号：JP17691589
申请日：1989-07-07
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TAKENAKA SHINYA
IPC分类号： G06K7/10
摘要： PURPOSE:To accurately read a bar code irrespective of the length of the bar code by providing at least two kinds of reflecting planes with different central angles so as to change the scanning angle of a laser beam at a polygonal mirror. CONSTITUTION:At least two kinds of reflecting planes with different central angles are provided at the polygonal mirror 4 of a bar code reader so as to change the scanning angle of the laser beam. In other words, the reflecting plane 4a with a narrow central angle (gamma) and the reflecting plane 4b with a wide central angle (delta) are arranged alternately. Therefore, the scan of the laser beam is performed with a large scanning angle (beta) first, and next, it is performed with a small scanning angle (alpha), and reading is performed by capturing only the bar code targeted to be read in a scanning area. In such a way, the bar code can be accurately read irrespective of the length of the bar code.

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