RU2096820C1 - Method for verification of information which is input by means of computer keyboard - Google Patents

Abstract

FIELD: computer engineering, computer science. SUBSTANCE: method involves combined sound support for input information by means of multiple-tonality signals which are in one-to-one correspondence to pressed keys. Space and digit keys correspond to single-tonality signals, additional keys on numerical keyboard and letter keys correspond to two-tonality signals of the following structure: one tonality is assigned to row of pressed key, second tonality is assigned to position of key in row. Capital letters correspond to three-tonality signals which consist of tonality assigned to Shift key, tonality assigned to row and tonality assigned to position of key in row. This results in possibility for operator to verify input by ear so that he/she focuses on single object (paper sheet) while verification of input is left to aural perception. EFFECT: decreased affect of display screen on eyes of operator, increased efficiency.

Description

 The invention relates to the field of computer engineering and computer science.

 A known method of monitoring information typed on a computer keyboard is that the information typed is visually displayed on a computer monitor and is simultaneously duplicated by sound signals of the same tone, confirming the operation of the key.

 When visually checking the information entered, the operator must constantly switch his attention from the primary source of information, which, as a rule, is a sheet of paper to the monitor and vice versa. The constant switching of attention from one object to another leads to an overload of the central nervous system and a decrease in working capacity. In addition, when looking from a sheet of paper to a monitor and back, the operator’s eye is constantly forced to adapt to objects with different light characteristics. The monitor is an intense light source, a sheet of paper is a source of reflected light. Such working conditions of the eye adversely affect the operator’s vision, leading to its deterioration. At the same time, a single-tone sound signaling does not allow the operator to control input information by ear, since there is no unambiguous correspondence between the dialed characters and their sound signaling. The same tone matches all keyboard characters.

 A device is also known for confirming the operation of keys in electronic calculators. The device signals the operation of the keys, generating sound signals of various frequencies depending on the pressed key (monotonic sound signaling).

 Monotone beeps are acceptable for devices with a keyboard of 10-15 characters. At the same time, the computer keyboard contains about 50 symbolic keys, and the total number of various characters, numbers, and letters entered from it is about sixty. If in this case a monotonic sound alarm is used, then this will require about 8 sound octaves. Sound signals will cover both the region of very low tones and the region of very high tones, which will create additional loads on the central nervous system of the operator, increase fatigue, and reduce working capacity.

 In addition, the computer keyboard contains combined keys from which you can enter both numbers and various signs and symbols. The use of monotone signaling in this case, in principle, does not allow the operator to control the input information by ear, since there is no unambiguous correspondence between the selected characters and the sound signaling.

 The purpose of the invention is to ensure an unambiguous correspondence between the characters typed on the computer keyboard and their sound signaling, to facilitate operator control of the information entered from the computer keyboard.

 To achieve this goal, it is proposed to use a combined sound signaling, consisting of the main tone signals corresponding to the keys of the additional functions Alt, Shift, a space or in general to the rows in which the selected key (letter) is located, and signals of the additional tone that corresponds to the specific location of the / key numbers, sign, letters / in the selected row.

 The use of a combined alarm gives the operator the ability to uniquely identify the pressed key by ear, since in this case an unambiguous correspondence is established between each pressed alarm and the corresponding monotone or multi-tone signal.

 In this case, the alarm can be organized as follows. The space sign and all digits correspond to monotone signals. Selecting an additional character or symbol on the numeric keypad will be accompanied by a two-tone signaling consisting of a pitch signal corresponding to the pressed Shift key and an alternate tone corresponding to the pressed Shift key and an additional tone corresponding to the location of the key in the row. The letter keys will correspond to a two-tone alarm, uniquely associated with the row in which the key is located, and its location in the row. When you select a capital letter, an additional signal appears that corresponds to the pressed Shift key. Such a three-tone signal will signal the operator to enter a capital letter.

 Thus, the use of a combined sound alarm allows the operator to completely control by ear the correctness of typing information on the computer keyboard, which reduces the load on the operator’s eyesight and increases labor productivity. In addition, the use of a combined sound alarm makes it easier for visually impaired people to use computers.

Claims (1)

 A method of controlling information typed on the keyboard, which consists in the fact that the typed information is visually displayed on a computer monitor and is simultaneously encoded with sound signals of various keys, characterized in that the key is encoded with sound signals in accordance with a matrix of two-tone signals, one of which corresponds to a series of which is the selected key, and another position of the key in a row.