6 results about "Keyboard controller" patented technology

A keypad controller includes a housing portion, which houses therein: a printed circuit board assembly (PCBA) including a plurality of light sources arranged in a single line thereon; a carrier plate arranged adjacent the PCBA, the carrier plate comprising a through opening, aligned with the light sources; a light pipe arranged adjacent the through opening; a plurality of control buttons arranged on the carrier plate on either side of the light pipe. The keypad controller also includes a faceplate having an opening corresponding to the arrangement of the control buttons and light pipe on the carrier plate, permitting access thereto, the faceplate securable to the housing portion. A light pipe, for use in an electronic control device, includes a longitudinal extension and includes a rear face and a front face opposite thereto.

A multifunctional upgradeable and expandable modular keyboard comprising a keyboard layout structure module having a plurality of keys and operatively coupled to a docking module via a docking module data and power connector and a releasable docking module fastener track and the keyboard layout structure module operatively coupled to a multifunctional modular peripheral input device via a peripheral input device fastener track and a peripheral input device data and power connector where the docking module houses a keyboard controller for communication of keystroke actuation to an information handling system and a keyboard battery. Plural sides of the releasable docking module fastener track slidingly couple the docking module and the keyboard layout structure module. Plural sides of the peripheral input device fastener track slidingly couple the multifunctional modular peripheral input device and the keyboard layout structure module. The docking module may further receive an interchangeable functional expansion module.

The application provides a detection device for a function keyboard controller of a linear accelerator, which comprises a first pin and a power supply connection, a twenty-fifth pin, a first resistor, a first LED lamp and a ground connected in sequence, and a first key. If the first LED lamp is lighted when the first key is pressed, it is determined that the first key and the first contact group are normal. The thirty-second pin of a connector is connected with a first relay coil and a ground in sequence, the thirty-fourth pin of the connector is connected with a first relay contact and a ground in sequence, and the first pin, the twenty-fifth pin, the thirty-second pin and the thirty-fourth pin are connected with corresponding pins with the same name in the function keyboard controller. When the ninth key and the tenth key are pressed, the first display lamp on the function keyboard controller is lighted and the second display lamp is extinguished. When the ninth key is disconnected, the first display lamp is lighted and the second display lamp is extinguished. When the tenth key is disconnected, the first display lamp is extinguished and the second display lamp is lighted. It is determined that the ninth key and the tenth key are normal. Maintenance personnel can intuitively determine the location of the fault.

The embodiment of the present application provides a keyboard controller style interface fault redundancy method and device, relates to the field of servers, and comprises the following steps: solidifying keyboard controller style interface information to flash memory; obtaining digital integrated circuit mapping information when a basic input output system starts; determining a baseboard management controller state according to the digital integrated circuit mapping information; when the baseboard management controller state is abnormal, repeatedly executing the step of obtaining the digital integrated circuit mapping information after a preset time interval until a first repetition number is reached, repeatedly executing the step of sending a baseboard management controller state detection instruction to detect the baseboard management controller state until a second repetition number is reached, and creating a keyboard controller style interface according to the keyboard controller style interface information stored in the flash memory; and the embodiment of the present application can improve the reliability and stability of a server system.

The utility model discloses an electronic book with an audio function, which comprises a book shell and book pages, the book shell comprises a front shell and a rear shell which are positioned on the front and rear sides of the book pages, and the book shell is provided with a broadcasting module, a recording module, a controller and a matrix keyboard positioned below the book pages. The controller is electrically connected with the broadcasting module, the recording module and the matrix keyboard, pressing flag bits corresponding to keys of the matrix keyboard are arranged on pages of the book pages, and the controller sends out corresponding control signals according to input signals of the matrix keyboard to control the working states of the broadcasting module and the recording module. The electronic module with recording and audio playing functions is arranged on the book shell, so that the interestingness is improved. The book pages are provided with the pressing marks corresponding to the function keys, and the touch pressure is transmitted to the function keys through the book pages, so that the control circuit makes a preset sound, and the interestingness is improved.

A communication device (11) for an application device (2) is shown and described. The application device (2) comprises an application device housing (5), an application device controller (6), and a user interface (7). The user interface (7) has a display (8) and at least one optical button (9) and is directly visible and operable from the outside of the application device housing (5). The application device controller (6) is designed to display information on the display (8) depending on a selection made by the user via the at least one optical button (9). The communication device (11) comprises a housing (12), a control unit (13), an interface (15), and a camera (16). The housing (12) can be positioned on the application device housing (5) so that the display (8) is within the field of view (20) of the camera (16). The control unit (13) is configured to recognize information displayed on the screen (8) in image data captured by the camera (16) and to transmit the recognized information via the interface (15) to an end device (25). The invention solves the problem of enabling a selection of the information to be displayed by the display (8). The problem is solved by the communication device (11) having an optical key actuation (17) for actuating the at least one optical key (9) and by the control (13) being designed and configured to select the information to be displayed by the display (8) using the optical key actuation (17).