JPS6298987A - Signal detecting device - Google Patents

Abstract

PURPOSE:To correctly read code information and make the device small in size by constituting by a sensor main body disposed on a sensor hood so as to detect the code information on a picture through the sensor hood and an adsorbing member. CONSTITUTION:A left end part of the cylindrical sensor hood 8 is fitted into a bulging part 6 of a sucking board 5 and both the members are integrated. When the sucking board 5 is sucked on the display picture so as to cover a bar code information display area 3 on the CRT display picture 2, the position relation of the display area 3 and a photosensor 10 is fixed and the displayed bar code information can be read correctly. Further, when sucking and fixing the sucking board 5, the distance l between the CRT display picture 2 and the photosensor 10 can be set longer to some degree and an external light entering from the CRT display picture 2 hardly reaches to the photosensor 10. When the external light is cut off, the bar code information is detected more effectively in the photosensor 10. Thereby, without being influenced by the external light, a correct reading and a compact device can be attained.

Description

[Detailed Description of the Invention] Technical Field> The present invention relates to a signal detection device for an information processing device that is capable of reading code information displayed on a screen and outputting the read code information by an output device. .

<Background of the Invention> The above-mentioned information processing device can directly read certain types of information displayed on a display device such as a CRT of a TV from the CRT display screen, and output the read information again using an output device such as a printer. 0 In this way, the TV is used as a medium. 1 The feature of this type of information processing device is that it reads the barcode information displayed on a portion of the CRT display screen, for example, about a coupon, and sends it to a printer. By having the program sponsor print out the coupons on paper, the TV viewers can obtain the coupons that are scheduled to be distributed by the program sponsor while the TV viewers are present.

It is desirable for a signal detection device for such an information processing device to be able to always accurately read code information on a CRT display screen without being affected by external light entering the screen.

<Purpose> The present invention has been made in view of the above-mentioned points.
It is an object of the present invention to provide a signal detection device which can accurately read code information on a screen without being affected by external light entering the display screen, and which is small and easy to handle.

<Example> Fig. 1 is a diagram showing the display area of code information displayed on the CRT display screen of the TV. This is a display area that displays transmission data such as. This display area displays barcode information sent from the broadcasting station in the same way as normal broadcast video, that is, code information that can be printed out by the viewer. Further, the portion surrounded by the dotted line 4 indicates the portion that comes into contact with the signal detection device according to the present invention.

FIG. 2 is a sectional view of the signal detection device according to the present invention.

In the figure, 5 is a concave suction cup made of a soft material such as rubber or resin. This suction cup has a diameter larger on the suction surface side (left side in the figure) than the barcode information display area 3, and a bulge 6 is formed on the base side (right side in the figure) VC.

A through hole 7 is bored in this bulge 6 as shown in the figure. 8 is a cylindrical sensor hood, and the left end of this hood fits into the bulge 6 of the suction cup 5, so that the two are integrated. Further, a circular flange 9 of a constant width is formed in the middle of the cylinder of the sensor hood 8 and protrudes from the wall surface.
is pasted. 11 is a signal line of the photosensor 10, and this signal line is connected to an information processing device (not shown).

The suction cup 5 and the sensor hood 8 are preferably black to block external light. Further, in the above embodiment, the suction cup 5 and the sensor hood 8 are constructed as separate bodies, and the two are connected later, but they may be integrally formed in advance during molding.

Since the signal detection device of the present invention is constructed as described above, by adsorbing the suction cup 5 to the CRT display screen 2 shown in FIG. 1 so as to cover the barcode information display area 3 on the CRT display screen 2. , the display area 3 and the photo sensor 1
Since the positional relationship with 0 can be fixed, the displayed barcode information can be read accurately.

Furthermore, when the suction cup 5 is fixed by suction, the distance t between the CRT display screen 2 and the photosensor 10 can be increased to a certain extent.
External light entering from the CRT display screen 2 is sent to the photo sensor 10
(It's almost impossible to reach that point.) In other words, the signal detection device of the present invention can block external light and make the detection of barcode information by the photosensor IO more reliable. An adsorbent that can be adsorbed onto the screen where code information is displayed;
The CRT is composed of a sensor hood integrated with the adsorbent, and a sensor body provided in the sensor hood so as to be able to detect code information on the screen via the sensor hood and the adsorbent. To provide a signal 1 detection device which can accurately read code information on a screen without being affected by external light entering the display screen, and which is small and easy to handle.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a display area of code information displayed on a CRT display screen of a TV, and FIG. 2 is a sectional view of a signal detection device according to the present invention. 5 is a suction cup, 6 is a bulge, 7 is a through hole, 8 is a sensor hood, 9 is a flange, 10 is a photo sensor agent Patent attorney Yoshihiko Fuku (2 others) Figure 1 Figure 2 Procedure Amendment June 19, 1986

Claims (1)

[Claims] 1. In a signal detection device of an information processing device that is capable of reading code information displayed on a screen and outputting the read code information on an output device, the code information is displayed. an adsorbent that can be adsorbed onto a screen; a sensor hood integrated with the adsorbent; and a sensor hood provided so as to be able to detect code information on the screen via the sensor hood and the adsorbent. A signal detection device comprising: a sensor body;