JPS6040049B2 - Multi-item input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention inputs item information by selectively specifying an item recording section to be input from a book in which a plurality of input item recording sections are formed on each of a plurality of bound sheets using an input specifying element. The present invention relates to a multi-item input device.

In general, this type of book-type multi-item input device used in the input section of an information processing device has a plurality of sheets bound at predetermined locations on a key mat whose input designating elements are a plurality of keys arranged in a matrix. By using a book for a multi-item input device that has a predetermined number of pages, and setting the page where the item name you want to input is recorded as a double-page spread, select and specify the key that corresponds to the item name you want to input. A configuration in which unique item code information is input based on the spread page information of this hook and operated key input information, or a configuration in which a magnetic or optical coupling element other than the key is used as an input designation element, etc. There is.

In such a so-called book-type multi-item input device, in the book-based item input mode, it is possible to accidentally operate an input designation element, such as a key, when the book is attached or removed, or when the book is not attached. There is probably a lot of fault in that.

In this case, the input item is specified from a page that does not exist in the book, which causes inconvenience in information processing. However, this type of conventional multi-item input device does not have a hardware means for prohibiting the reception of item input information when the book is not in a normal two-page spread state in the item input mode using the book. Therefore, you end up entering incorrect information. Therefore, in the past, erroneous inputs at this time were determined by software. For this reason, in the past, it was necessary to prepare software for determining erroneous inputs, which had the disadvantage that the software became complicated. This invention was made in view of the above circumstances.
With a simple hardware configuration, it is possible to allow the book to accept item input information only when the book is reliably placed in a predetermined location and in a normal spread state. It is an object of the present invention to provide a multi-item input device that can reliably prevent erroneous input in an item input mode using a book.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows a state in which a book for a multi-item input device is displayed in a two-page spread state (page open state) at a predetermined location on the key mat, and in the figure, K,, K21, . . . 11 is a key for inputting items arranged in a matrix, and numeral 11 is made of, for example, a plastic plate, and a hole H... for passing the key is formed at a predetermined position, and a hole H... corresponding to the hole H... is formed. A predetermined number of sheets 12, 12, . . . on which item recording portions X, .
This is a book for a multi-item input device (hereinafter simply referred to as a book), which is constructed by binding the sheets together, and forms one page with a pair of left and right spread sheets. Further, S,, S2...Sm are provided corresponding to one of the storage fittings 13 for each of the sheets 12, 12..., respectively, and the storage fittings 13, 13 for the corresponding sheets 12, 12... This is a page detection switch whose switching is controlled by being pressed by... This page detection switch S,,S2...Sm
Among them, the switch S is pressed and controlled by the stapling tool 13 of the sheet 12 when the front cover forming surface of the sheet 12 stowed at the top of the book 11 is positioned on the key mat on the left half. off control) and switch Sm is book 1
When the back cover forming surface of the sheet 12 that has been stowed at the bottom of the sheet 1 is positioned on the key mat of the right half, the sheet 12 is press-controlled (off-controlled) by the stapling metal fitting 13 of the sheet 12. Further, SB is a book detection switch which is turned off by the pressing force of the spine forming portion 11a of the book 11 when the book 11 is securely set at a predetermined position on the key mat. FIG. 2 shows the main circuit configuration of the present invention, and in the figure, 101 indicates the operated key K.
102 is a key K operated based on the output signal of this input detection circuit 101;
103 is a strobe pulse generation circuit that outputs a strobe pulse ST for stroping the code information output from the encoder 102 based on the output signal of the input detection circuit 101. , 104 is the switch S shown in FIG.
, Sm, and SB are both at the "1" level, an AND gate 105 is used to permit the output of the strobe pulse ST, based on the strobe pulse ST output from the AND gate 104. Data input registers R, R, . . . , which store the code information output from the encoder 102, have one end grounded, and each key K,, K2, .
- It is a resistance element for supplying a signal Vcc of logic "1" level to the other ends (output ends) of Sm and SB, respectively.

To explain the operation here, a certain key Ki on the key mat
is operated, the encoder 102 outputs code information specific to the operated key Ki based on the output of the input detection circuit 101, and the strobe pulse generation circuit 103 outputs code information specific to the operated key Ki. A strobe pulse ST is output.

At this time, in the item input mode F using the book 11, when the book 11 is reliably taught at a predetermined position on the key mat and is in a normal two-page spread state (page open state), the switches S, Sm, and SB are turned on. Both are in the off state and the logic is “1”.
Therefore, the AND gate 104 is controlled to open, and the strobe pulse ST obtained from the strobe pulse generation circuit 103 is outputted via the AND gate 104. From the strobe pulse ST', the above encoder 1
The code information output from 03 is input to data input register 1.
This information and page detection information based on the on/off contents of the page detection switches S, -Sm are sent to the subsequent circuit as item input code information.
In addition, in the operating section of the key Ki, when the book 11 is not securely placed in the predetermined position on the key mat, or when the pages of the book 11 are not spread out, the switches SB, S, Sm At least one of them is on ('
Therefore, the AND gate 104 maintains the closed state and prohibits the output of the strobe pulse ST.As a result, the code information output from the encoder 102 is input to the data input register 105. In this way, only when Book 11 is securely placed in the specified position on the keypad and the pages are in a double-page spread state, can item information be entered, and therefore incorrect operation can occur. It is possible to reliably prevent item information input by In addition, the explanation has been given using an example of a configuration in which a mechanical switch is used as a switch for book detection, but the present invention is not limited to this. According to the present invention, as detailed above, a multi-item input device is provided which can reliably prevent erroneous input of item information with a simple hardware configuration. can.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a plan view showing the arrangement of keys and switches on a key mat and a book placed in a two-page spread state, and Fig. 2 is a circuit diagram of the main parts. It is a book diagram showing the configuration. 11...Book for multi-item input device (book),
12, 12... Sheet, 13, 13... Binding bracket, K,, K2... Km... Page detection switch, SB... Book detection switch, 10
1... Input detection circuit, 102... Encoder, 103... Stroke pulse generation circuit, 104
...And gate, 105...Data input register. Figure 1 Figure 2

Claims (1)

[Claims] 1. A multi-item system in which item information is input by selectively specifying the item recording section to be input from a book in which a plurality of input item recording sections are formed at predetermined positions on each of a plurality of bound sheets using an input specifying element. In the input device, a first detection means for detecting that the book is placed in a predetermined position, a second detection means for detecting that the book is in a spread state, and the first detection means for detecting that the book is placed in a predetermined position. Only when the means detects that the book is placed in a predetermined position and the second detecting means detects that the book is in a two-page spread state, input of the item prescription information by operating the input designation element is permitted. 1. A multi-item input device comprising: input control means.