30 results about "Keyboard types" patented technology

The invention discloses a frequency converter keyboard, a frequency converter and a frequency converter identification method. The frequency converter identification method used for the frequency converter keyboard comprises that keyboard handshake data including keyboard type data is sent to the frequency converter; whether frequency converter handshake data including frequency converter model data is received from the frequency converter in preset time is determined; if the frequency converter handshake data is received, a model of the frequency converter is identified according to the frequency converter handshake data, and a corresponding function parameter configuration table is called to match the frequency converter; and if the frequency converter handshake data is not received, itis determined that the frequency converter keyboard does not support the frequency converter, and a corresponding prompt signal is emitted. Thus, the frequency converter is identified automatically, user parameters are set in corresponding to function codes, confusion of a debugging parameter is avoided, and parameters of the frequency converter are set normally when the parameters of the target frequency converter are debugged. When the model of the frequency converter cannot be identified, prompt is provided, a user can replace the frequency converter keyboard, and the time cost of debuggingcan be reduced.

The invention discloses an accordatura device and its achieving method. The accordatura device comprises a single machine unit, a press key input unit, a display output unit and an audio output circuit, which is characterized in that the press key input unit arranges a group of piano keyboard type press key and a function press key switch which is corresponding to the real musical instrument keyboard. The method comprises the following steps: a. it uses the corresponding press key to input the order; b. the single machine unit finds out the stored standard sound code by the inputted order; c.it generates an audio signal output of the standard sound by the code and displays the name, group order, the arranged A4 value and the indicating sound on the staff sent by the outputting unit at the same time.

The invention discloses a POS system and Bluetooth connection equipment. The POS system comprises an intelligent handset or a flat computer (an intelligent host computer), a bill printer, a keyboard or a bar code scanner and the Bluetooth connection equipment, wherein the Bluetooth connection equipment is separately connected with the intelligent host computer, the bill printer, the keyboard or the bar code scanner, the Bluetooth connection equipment comprises an MCU input output module and a Bluetooth transmission module, the Bluetooth transmission module is separately connected with the intelligent host computer and the MCU input output module, the MCU input output module comprises an MCU processor and at least two USB interfaces, the MCU processor is separately connected with the USB interfaces, and the USB interfaces are connected with the bill printer, the keyboard or the bar code scanner. Through the POS system and the Bluetooth connection equipment, the intelligent host computer is made to realize communication with keyboard type equipment including the bill printer and the bar code scanner through Bluetooth connection, and a problem that the input content of input equipment such as the bar code scanner is wrongly converted by input method software of the intelligent host computer in a routine connection mode can be solved.

The invention provides an aluminum plate for an outdoor piano keyboard type cantilever ceiling and a construction method of the aluminum plate. The aluminum plate comprises white aluminum plates and standard section wood color aluminum plates which are arranged at intervals, the white aluminum plate and the standard section wood color aluminum plate are fixed on the single steel keel; three transverse ends of L-shaped corner braces which are arranged side by side are respectively fixed on the adjacent white aluminum plate and the standard section wood color aluminum plate; the vertical ends ofthe L-shaped corner braces are respectively fixed on the two side surfaces of the single steel keel; a self-threading nail passes through the vertical end of the L-shaped corner brace and the two side surfaces of the single steel keel. According to the invention, innovative aluminum single plate fixing nodes are optimized, the BIM modeling technology is combined, lofting modeling is conducted onkey nodes, a suspended ceiling internal reverse hanging fixing mode is adopted, the cost generated by using a traditional operation platform is reduced, and the installation precision of an aluminum plate is improved.

The present application proposes a key positioning, manipulation and testing method and device of an input method keyboard. Wherein, the button positioning method of the input method keyboard includes: determining the reference coordinate point in the input method keyboard; according to the reference coordinate point and the keyboard structure parameters of the input method keyboard, generating a mapping function corresponding to the input method keyboard, wherein the mapping function is used to determine The coordinates corresponding to the input key identifiers, or, the mapping function is used to determine the key identifiers corresponding to the input coordinates. The input method keyboard method of the embodiment of the present application can quickly relocate coordinates of various keyboard types according to changing requirements, improves processing efficiency, and saves coordinate information maintenance resources.

The invention discloses an embedded keyboard type combined improved structure for a mouse. The structure comprises a device body, a mouse base is arranged at the top of the device body, a sensing areais arranged on the inner side of the mouse base, and a mouse device is installed at the top of the sensing area; a foldable mouse rear base is arranged at one end of the mouse device, one side of thefoldable mouse rear base is connected with a mouse front end, and a mouse moving rod is connected between the mouse base and the mouse device; a sensing switch is arranged on one side of the mouse moving rod, and buffer sliding blocks are arranged on the two sides of the bottom of the mouse device; a keyboard base is arranged at the bottom of the device body. Due to a connection structure used for combination through a keyboard base rotating shaft, a keyboard and the mouse are combined; the structure can be conveniently folded and stretched for use through a rotating supporting base, the sizeis reduced to the largest extent, and the improved structure is convenient to carry and use; by means of a keyboard and mouse integrated structure, the keyboard and the mouse can be controlled by onehand, the mouse does not need to slide, and the occupied area is reduced to the largest extent.