TH16207B - A keyboard with an extended operation keypad. - Google Patents

Abstract

DC60 (20/04/41) Invention Topics Related to the type of keyboard Along with an expanded action keypad on the keyboard, there are many expanded action keys. The keypad is connected to the I / 0 cable for the micro processor. In the circuit structure of the keyboard in conjunction with the prototype keyboard sweep matrix. Constitutes a new sweep matrix, so the default code of such a keypad May be in conjunction with the performance of the program. Successfully applied in the windows system Therefore, the operator may directly control the existing operations of the peripheral devices (multi-media) on the keyboard. Along with the operation of the control panel shown on the monitor display with one IRQ connector pin, one of the aforementioned micro-processor pin is connected to the cathode of the three LED emitting diodes while the anode. Of each light-emitting diode, the LED is connected to one wire of the sweep matrix. Therefore, such a keyboard may be compatible with the XT comma processor in its applications. The master sweep matrix may be defined as not yet defined and the operator may directly control the existing actions of the peripheral devices on the keyboard and their keypads. May be set in a way "Running" according to the needs of the user. Invention topic Related to the type of keyboard Along with an expanded action keypad on the keyboard, there are many expanded action keys. The keypad is connected to the I / 0 cable for the micro processor. In the circuit structure of the keyboard to share with the model keyboard sweep matrix Constitutes a new sweep matrix, so the default code of such a keypad May be in conjunction with the performance of the program. Successfully applied in the windows system Therefore, the operator may directly control the existing operations of the peripheral devices (multi-media) on the keyboard. Along with the operation of the control panel shown on the monitor display with one IRQ connector pin, one of the aforementioned micro-processor pin is connected to the cathode of the three LED emitting diodes while the anode. Of each light-emitting diode, the LED is connected to one wire of the sweep matrix. Therefore, such a keyboard may be compatible with the XT comma processor in its applications. The master sweep matrix may be defined as not yet defined and the operator may directly control the existing actions of the peripheral devices on the keyboard and their keypads. May be set in a way "Running" according to the needs of the user.

Claims (1)

1. Keyboard with expandable operation keypad And will be compatible with The XT mother computer consists of a shell with a number of keypad switches. A number of keypad switches and a number of extended keypad switches The processor is built into the said shell. And is connected to the switch Keypad a certain number of characters. There are a number of these keypad switches and a number of these expandable keypad switches. By the right matrix Scanning of lines horizontally and vertically The processor will detect Grasp the action of the certain number of keypad switches and the certain number of keypad switches. And cause a signal that is encoded from the specified segment A preset of the transformation matrix corresponding to the part one sequence of The scanned matrix for sending to the parent computer, the processor detects the action of an expandable number of keypad switches. One such And produces an encrypted signal that represents a control function for The peripheral devices of the parent computer from non-predefined segments. Of the aforementioned transformation matrix corresponding to the second order of the The scanned matrix that represents a number of the aforementioned expandable keypad switches and a number of light-emitting diodes that are respectively connected to each such processor of a number of light-emitting diodes. Such anode has been connected. With one of the scanned strands of the matrix Diode emitting light Each of these has a cathode connected to the demand terminal. Interrupted indication of the selected state of the extended keypad switch. It can add some of these while maintaining compatibility with the mother computer type XT.