Abstract: The invention discloses a gate driving circuit and a display device. The gate driving circuit includes first to eighth dock signal lines and first to Nth stage first shift registers, where N is an integer greater than or equal to 9. The first to eighth clock signal lines are configured to provide first to eighth clock signals, respectively. The ith stage first shift register is coupled to one of the first to eighth clock signal lines and receives one of the first to eighth clock signals, a first input signal and a second input signal and outputs an ith stage first output signal, where i is any integer from 1 to N.

Abstract: A display device and a method of repairing the same are disclosed. In one aspect, the display device includes an OLED, a repair line electrically connected to a first dummy pixel and a second dummy pixel, and a repair modulation circuit electrically connected to the first and second dummy pixels. The first dummy pixel includes a first dummy pixel driving circuit configured to output a driving current corresponding to a data voltage of a selected pixel of the OLED to the repair line, when the selected pixel becomes defective, based on a first light emission control signal. The repair modulation circuit includes a capacitor configured to be initialized before the driving current is output from the first dummy pixel driving circuit. The capacitor of the repair modulation circuit is configured to be charged with the driving current when the driving current is output from the first dummy pixel driving circuit.

Abstract: A source driver applied in a display includes a DAC and an output buffer. The DAC receives M-bits digital input voltage and converts it into 2M analog input voltages. M is a positive integer. The output buffer with interpolating function receives the 2M analog input voltages and increases them to K analog output voltages in a N-bits interpolating way. N is a positive integer and K=2M*2N=2(M+N). The output buffer includes a positive output buffer unit and a negative output buffer unit and generates a positive interpolating voltage and a negative interpolating voltage through them respectively to share the same source output channel of the source driver and achieve linear interpolation voltage characteristics through mutual compensation between the positive interpolating voltage and the negative interpolating voltage.

Abstract: A system uses image data, representing images to be displayed in successive frames, to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second sub-frames, supplying the image data during one of the sub-frames, supplying compensation data during the other of the sub-frames, compensating image data based on the compensation data, and supplying each pixel with a drive current that is based on the compensated image data during each frame. The compensated image data may be supplied from a driver having a preselected data resolution, and the system determines whether the compensated image data is greater than the data resolution of the driver, and if the compensated image data is greater than the data resolution of the driver, transfers the excess compensated image data to a different sub-frame.

Abstract: A display device includes a plurality of pulse output circuits each of which outputs signals to one of the two kinds of scan lines and a plurality of inverted pulse output circuits each of which outputs, to the other of the two kinds of scan lines, inverted or substantially inverted signals of the signals output from the pulse output circuits. Each of the plurality of inverted pulse output circuits operates with at least two kinds of signals used for the operation of the plurality of pulse output circuits. Thus, through current generated in the inverted pulse output circuits can be reduced.

Abstract: A pixel circuit includes a driving unit, a light emitting unit having a second terminal receiving a second voltage, a compensation capacitor, and first, second and third switches. The first switch has a first terminal connected to the driving unit, and a control terminal for receiving a first control signal. The second switch has a first terminal coupled to the second terminal of the first switch, a second terminal for receiving an initialization signal, and a control terminal for receiving the first control signal. The compensation capacitor has a first terminal coupled to the second terminal of the first switch, and a second terminal coupled to the first terminal of the light emitting unit. The third switch has a first terminal connected to the driving unit, a second terminal coupled to the first terminal of the light emitting unit, and a control terminal for receiving a light emission control signal.

Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a substrate including a display area configured to display an image and a peripheral area surrounding the display area, a plurality of scan lines formed over the substrate and a plurality of data lines crossing the scan lines. A plurality of pixels is formed in the display area and electrically connected to the scan lines and the data lines, a repair ring is formed in the peripheral area and surrounding the display area, and the repair ring includes a first portion and a connecting portion different from the first portion. The first portion has a width less than that of the connecting portion different from the first portion. A driving circuit is configured to generate a data signal that is output to the data lines and the repair ring.

Abstract: The disclosure is directed toward driving methods and a driving circuit which are particularly suitable for bi-stable displays. In certain embodiments, methods provide the fastest and most pleasing appearance to the desired image while maintaining the optimal image quality over the life expectancy of an electrophoretic display device.

Abstract: Disclosed are a backlight brightness adjustment method and apparatus. The backlight brightness adjustment method includes the following steps: dividing a backlight area of a liquid crystal display (LCD) into multiple sub-areas, acquiring maximum pixel brightness M of each sub-area, and acquiring average pixel brightness A according to the maximum pixel brightness M; classifying the brightness into multiple brightness ranges, and separately adjusting duty cycles and drive currents of a backlight source in different brightness ranges according to the average pixel brightness A and the maximum pixel brightness M; determining, according to the maximum pixel brightness M of each sub-area, a brightness range of the sub-area, and acquiring an adjusted duty cycle and drive current that correspond to the brightness range of each sub-area; and correspondingly controlling illumination brightness of each sub-area by using the adjusted duty cycle and drive current. The present invention improves contrast of an LCD.

Abstract: An electronic device may have a display such as a liquid crystal display. The display may have an array of pixels that display images to a user. Backlight structures may provide the array of pixels with backlight illumination at a backlight illumination level. The backlight structures may have a light source with an array of light-emitting diodes and photoluminescent material that is pumped by pump light from the light-emitting diodes. The backlight illumination may experience color variations as a function of the backlight illumination level. Circuitry in the electronic device may be used to implement a backlight level color compensator. The backlight level color compensator may apply color correction factors to the image data of the displayed images to compensate for variations in color of the image data due to variations in backlight illumination level and operating temperature.

Abstract: A light intensity detection signal indicative of the intensity of light emitted by a light source is acquired, and on the basis of the light intensity detection signal and a set reference signal, a comparison circuit generates a comparison signal indicative of turning ON and OFF. Within a sub-frame period, a logic circuit repeats turning ON/OFF based on a pulse signal inputted from the comparison circuit, and outputs a lighting signal for causing the light source to emit light in accordance with the reference signal which is a set value, and outputs a non-lighting signal for causing the light source to not emit light in accordance with a set value.

Abstract: A liquid-crystal display device includes red pixels with red color filters, green pixels with green filters, blue pixels with blue filters, and a light projecting unit to project light upon the pixels. The light projecting unit includes first and second light sources wherein the light emission peak wavelength is in the green region, and a third light source wherein the light emission peak wavelength is in the blue region. The second light source includes a light emission peak wavelength greater than the first light source. In a first term, the first source emits light, and the blue pixel liquid-crystal layer is controlled to a transmissibility less than or equal to a threshold regardless of frame data. In a second term, the first light source is effectively not and the second and third sources are emitting light. The blue pixel liquid-crystal layer is controlled to a transmissibility according to frame data.

Abstract: Image data may be color graded, distributed and viewed on target displays. Mappings that preserve mid-range points and mid-range contrast may be applied to view the image data for color grading and to prepare the image data for display on a target display. The image data may be expanded to exploit the dynamic range of the target display without affecting mid-tone values.

Abstract: The present invention provides a liquid crystal display panel and a gate drive circuit thereof. The gate drive circuit comprises a plurality of shift register circuit, and the plurality of shift register circuit are series cascade connected, and each shift register circuit comprises: a first pull-up holding circuit, coupled to the first node, the first clock signal, a first reference voltage and a second reference voltage, and employed to keep a low voltage level of the first node; a compensating circuit, coupled to the first node or the first pull-up holding circuit, and employed to compensate the voltage level of the first node or the first pull-up holding circuit. Thereby, the stability of long-term operation of the gate drive circuit can be promoted to raise the quality of the display panel.

Abstract: A display panel and a driving method for the same are disclosed. The display panel includes gate lines, data lines, gate driver, and data driver. The gate lines and the data lines define multiple pixel areas. Each pixel electrode correspondingly connects with one gate line and one data line. Pixel areas connected with a same gate line allow lights having a same color to pass through. When displaying a picture, the gate driver sequentially drives the multiple gate lines, and the data driver applies a same gamma voltage on the pixel areas connected with the same gate line. The present invention can drive the display panel by a lower hardware cost such that light transmittance rates of sub-pixels corresponding to different colors when same grayscale voltages are applied are the same.

Abstract: A gamma curve correction circuit including a mapping module and a correction module. The mapping module maps data to be outputted into original mapped data via original bonding points on a gamma curve. The original bonding points at least include a first original bonding point, a second original bonding point, and a third original bonding point. The second original bonding point is located between the first original bonding point and third original bonding point. A first line between the first original bonding point and second original bonding point has a first slope; a second line between the second original bonding point and third original bonding point has a second slope. The correction module obtains a third line according to a first interpolating point on first line and a second interpolating point on second line. The third line has a third slope between the first slope and second slope.

Abstract: The description relates to display device image quality. One example can include a display, a processor, storage, and a pixel run time counter. The display can include a set of multiple pixels. Individual pixels can include multiple color light emitting diodes (LEDs). The processor can be configured to convert image related data into frame renderings for driving the multiple pixels of the display and the storage can be accessible by the processor. The pixel run time counter can be configured to store pixel information for a subset of individual pixels relative to individual frame renderings on the storage. The stored pixel information from multiple subsets of individual pixels of the frame renderings can collectively reflect time and intensity parameters that the frame renderings have driven the set of pixels.

Abstract: A liquid crystal display device comprising: a plurality of data lines; a plurality of scanning lines; a plurality of source drivers that supply a data signal to the plurality of data lines; a gate driver that supplies a scanning signal to the plurality of scanning lines; and a display control circuit that controls the plurality of source drivers and the gate driver. The display control circuit includes an image determinator that determines whether an externally-input image includes a pattern image and a polarity signal generator that generates a polarity signal deciding a voltage polarity of the data signal in each source driver based on a determination result of the data signal. The polarity signal generator individually outputs each of the plurality of generated polarity signals to the corresponding source driver.

Abstract: A system and method are disclosed to control the power consumption of column drivers in a display system. A video input signal is received which has an active video period and a vertical blanking period between frames. A timing controller transmits a first video frame to a column driver. The timing controller transmits a column driver disable command during a vertical blanking period. Prior to the subsequent active video period, the timing controller transmits a column driver enable command. The timing controller proceeds to transmit a second video frame to the column driver. In one embodiment, the timing controller determines whether to disable and enable the column driver based on a refresh rate, the refresh rate calculated by the timing controller from the video input signal.

Abstract: The present invention provides a level shift circuit and a level shift method for a GOA structure liquid crystal panel. The level shift chip (20) comprises a time delay calculation register module (201) and a start signal line (30) and an Inter-Integrated Circuit bus (40) are employed to communicatively couple the sequence controller (10) and the level shift chip (20).

Abstract: The present invention discloses a bending action recognition device and a flexible display device, the bending action recognition device comprises: a first electrode, a second electrode, a current detecting unit and a plurality of electrical conductors, a first voltage is applied on the first electrode, a second voltage is applied on the second electrode, first ends of all the electrical conductors are connected to the first electrode, different electrical conductors are located at different positions on the flexible substrate, and different electrical conductors have different resistances; when the flexible substrate is bent backward, at least one electrical conductor is electrically connected to the second electrode, and a first current is generated on the first electrode and the second electrode, and when different electrical conductors are electrically connected to the second electrode, the first current has different current values.

Abstract: A display apparatus and a gate driving method thereof are provided. The display apparatus includes a display panel and a gate driver. The display panel has a plurality of gate lines. Output terminals of the gate driver are coupled to the gate lines in a one-to-one manner. The gate driver is configured to drive the gate lines according to a scrambled scan sequence.

Abstract: Related to is an array substrate, a liquid crystal display panel, and a driving method for the liquid crystal display panel. The array substrate includes a plurality of pixel units, each of which includes a main-area electrode, a sub-area electrode and a sharing capacitor, wherein a control terminal of a sharing control switch which connects the sharing capacitor with the sub-area electrode is connected, via a control switch, to a scan line correlated with an Nth pixel unit which is arranged in a scanning direction and counted from the present pixel unit. The control switch is configured to be turned on in a two-dimensional scanning mode when at least there is a scan signal on the scan line, and to be turned off in a three-dimensional scan mode when at least there is the scan signal on the scan line.

Abstract: A display panel includes a plurality of pixels, a gate driver, a clock pad, and a buffer circuit. The gate driver supplies gate signals to the plurality of pixels. The clock pad receives a clock signal. The buffer circuit is connected between the clock pad and the gate driver. The buffer circuit compensates for an RC delay of the clock signal received through the clock pad, and supplies the clock signal of which the RC delay is compensated to the gate driver.

Abstract: A display panel has a display area and a non-display area surrounding the display area, and the display panel includes scan lines, data lines, pixel structures, at least one driving device, capacitor electrode lines, and compensation capacitors. Each pixel structure includes an active device, a pixel electrode, and a storage capacitor. The driving device is located in the non-display area and is electrically connected to the pixel structures. The capacitor electrode lines extend to the display area from the non-display area and are electrically connected to the storage capacitors of the pixel structures. The compensation capacitors are located in the non-display area and between the pixel structures and the driving device. Two ends of each of the compensation capacitor are electrically connected to one of the scan lines and one of the capacitor electrode lines, respectively.

Abstract: A display panel includes a substrate, a plurality of pixels, a plurality of scan lines, a pull-down control circuit, and a gate driving circuit. The pixels are disposed on a display area of the substrate. The scan lines are disposed on the substrate and respectively coupled to the corresponding pixels. The pull-down control circuit is disposed on a peripheral area of the substrate, receives a plurality of clock signals, and has a plurality of pull-down units to provide a plurality of pull-down signals. The gate driving circuit is disposed on the peripheral area and has a plurality of shift registers. The shift registers are coupled to the scan lines to provide a plurality of gate driving signals and pull down the gate driving signals in sequence according to the pull-down signals. The pull-down control circuit and the gate driving circuit are arranged along a side of the display area.

Abstract: Provided are an array substrate and driving method thereof, a display panel and a display apparatus. In the array substrate, at least one data line has at least one switch thereon. Each switch is configured to connect or disconnect two parts of the data line that are electrically connected to the switch respectively, and a control component is configured to, according to the positional relationship of a data driving circuit, a currently scanning gate line and each switch, control the switch to connect or disconnect. When applying a gate scanning signal to the gate line between the switch and the data driving circuit, the control component can control the switch to disconnect; when applying a gate scanning signal to the gate line on the side of the switch that is facing away from the data driving circuit, the control component can control the switch to connect.

Abstract: The present invention discloses a liquid crystal display, including: a liquid crystal panel, which defines n first division zones in a first direction; a gate driver, which includes n gate driver chips respectively corresponding to the n first division zones, the gate driver chips each including a control unit and a first electrical resistance unit; a timing controller, which is arranged to supply a control signal to the liquid crystal display; and a common voltage generator, which supplies a common voltage source that is fed in sequence to the n gate driver chips.

Abstract: The present invention discloses a liquid crystal panel. The panel includes a display area that includes an array of pixel units formed thereon, a source controller, a gamma voltage control section, a gate controller, a chamfer voltage control section, and an image inspection section. The image inspection section classifies images into n classes according to ranking of grey level. The chamfer voltage control section is operated in response to the class of an image to control one of the n chamfer voltage circuits to supply the chamfer voltage to the gate controller and the gamma voltage control section is operated in responses to the class of the image to control one of the n gamma voltage circuits to supply the gamma voltage to the source controller, where n is an integer greater than 1. The present invention also discloses a driving method for the liquid crystal panel and a liquid crystal display including the liquid crystal panel.

Abstract: The present invention provides a shift register and a driving method thereof, a driving circuit, and a display device, the shift register includes an input unit, an output unit and a reset unit, the input unit controls potential of a first node according to input signals of an input terminal and a first voltage terminal, the output unit controls an output signal of an output terminal according to input signals of the input terminal and a clock signal terminal under the control of the potential of the first node, and the reset unit controls potential of a second node according to input signals of a reset terminal and a second voltage terminal.

Abstract: To prevent an influence of normally-on characteristics of the transistor which a clock signal is input to a terminal of, a wiring to which a first low power supply potential is applied and a wiring to which a second low power supply potential lower than the first low power supply potential is applied are electrically connected to a gate electrode of the transistor. A semiconductor device including the transistor can operate stably.

Abstract: A mobile terminal and a method of controlling the same are provided. The mobile terminal includes a touch screen, and a controller which determines an opening angle of a front cover unit of the mobile terminal, where the opening angle is the angle between the mobile terminal and a front cover unit included in a cover where the cover is connected to the mobile terminal, and controls to display one or more pages on the touch screen where each page is displayed at a proportion determined based on the opening angle.

Abstract: Remote control methods, systems, and devices are described. In one aspect, a remote control method using a wearable device is provided. In the method, a communication connection is established with a remote camera over a network and the field of view (FoV) of the remote camera is controlled according to a detected movement of the user wearing the wearable device.

Abstract: A non-quadrangular display panel includes a plurality of first signal lines disposed in a non-quadrangular display area, wherein the non-quadrangular display area includes a plurality of pixels. A switching circuit is disposed in a peripheral area of the non-quadrangular display panel. The peripheral area is disposed adjacent to the non-quadrangular display area. The switching circuit passes a signal to at least one of the plurality of first signal lines. A plurality of second signal lines is disposed in the peripheral area. At least two adjacent second signal lines are uniformly spaced apart from each other and transmit signals at different times to the switching circuit. A plurality of third signal lines is disposed in the peripheral area orthogonal to the plurality of second signal lines and connected to the switching circuit.

Abstract: The present disclosure relates to a mobile terminal capable of cooperating with a transparent display apparatus and a method for controlling the same, wherein the mobile terminal capable of cooperating with the transparent display apparatus includes a wireless communication unit capable of performing transmission and reception of information with the transparent display apparatus, a display unit capable of outputting path search information, and a controller capable of transmitting screen information related to the path search information to the cooperative transparent display apparatus, through the wireless communication unit such that the screen information related to the path search

Abstract: The present invention discloses a system for converting RGB data to WRGB data, which includes: a color enhancement assembly, which is configured to conduct color enhancement for input RGB values in order to obtain color-enhanced RGB values; and a four color conversion assembly, which is configured for converting the color-enhanced RGB values into output WRGB values. The present invention also discloses a method for converting RGB data to WRGB data. The system and method for converting RGB data to WRGB data according to the present invention allows for improvement of transmittance of a display device while at the same time increasing saturation of a display image and providing an effect of color enhancement.

Abstract: Methods and systems for graphics rendering using a web browser. Embodiments commence upon receipt at a cloud-based collaboration server, a request to render a high bit depth image on a user device using a browser and a graphics processing unit. The graphics processing unit is configurable to render a display image based on a color space. The cloud-based collaboration server transmits a high bit depth image to the user device and a sending module sends instructions to be executed by the browser on the user device. The sent instructions comprise one or more first GPU commands that serve for rendering images using the graphics processing unit, wherein at least some of the GPU commands map the pixel data array to a color space, and some of the GPU commands map the pixel data array to the color space to generate a remapped grayscale image.

Abstract: An electronic device includes an application processor that generates conversion data by downsizing display data of each frame according to display characteristic information of each frame; and a display driver that receives the conversion data and the display characteristic information and drives a display panel in response to received conversion data and display characteristic information.

Abstract: A method comprising receiving sensor data from a sensor, obtaining image data from a graphical effects shader based on the sensor data, blending the image data with a plurality of application surfaces to create a blended image, and transmitting the blended image to a display. The method may further comprise blending a color image with the blended image in response to a reduction in ambient light. Also disclosed is a mobile node (MN) comprising a sensor configured to generate sensor data, a display device, and a processor coupled to the sensor and the device display, wherein the processor is configured to receive the sensor data, obtain image data generated by a graphical effects shader based on the sensor data, blend the image data with an application surface associated with a plurality of applications to create a blended image, and transmit the blended image to the display.

Abstract: A power switching circuit and a method for controlling the same are disclosed herein. The power switching circuit includes a frequency control circuit, a pulse modulation circuit, and a switching convertor. The frequency control circuit receives a first reference signal driving a load, from a timing controller, and generates a second reference signal based on the first reference signal. The pulse modulation circuit generates a pulse control signal by performing pulse width modulation (PWM) or pulse frequency modulation (PFM) on the second reference signal. The switching convertor generates the voltage of output power by switching a switching element connected to the output power, in response to the pulse control signal. The pulse control signal is synchronized with the first reference signal driving the load.

Abstract: Provided is a display device including an imaging unit that captures a moving image in a predetermined range in an image display direction, a moving body detection unit that detects whether or not a moving body is present in a predetermined range in the image display direction, an image analysis unit that analyzes the moving image captured by the imaging unit to detect whether or not a face is present, and a power control unit that controls power consumption with different patterns according to a plurality of modes that are set by combining whether or not the face detected by the image analysis unit is present and whether or not the moving body detected by the detection unit is present.

Abstract: The present invention relates to a portable communication device equipped with a screen and a random access memory comprising: means for receiving a data stream through a radio link; characterized in that it comprises: means for automatically displaying information (I1) from the data stream on said display screen, without any user's request, a part of this information (I1) being stored in random access memory during a period of time that is longer than the duration of display; means for displaying information (I2) from the data stream on said display screen, upon user's request, this information (I2) being stored in random access memory during the duration of display only. The present invention also relates to a base able to communicate with a portable communication device.

Abstract: A hybrid drum apparatus combines and integrates at least two different types of drums into a common apparatus. The hybrid drum apparatus includes a six-sided box drum upon which a player sits and strikes the front and side surfaces to produce various percussion sounds. The box drum body serves as a housing for another type of drum, such as a djembe, which is an elongated goblet-shaped hollow drum, having a membrane drumhead top. The djembe is integrated into the box drum body such both may be played simultaneously. The hybrid drum provides an opening into which the djembe may be inserted such that the drumhead is relatively flush with the strike surface of the box drum. The rear panel of the box drum is provided with an opening which both supports the bottom end of the djembe and allows for the sounds produced to resonate out from the box drum body. The hybrid drum apparatus may incorporate other elongated drums, such as a doumbek or congo, as well as frame drums, such as a flat drum or tambourine.

Abstract: Here in lies the abstract of the drum wah. It is used to put pressure or lessen pressure on the sound membrane of a torn drum in real time, while the performer plays. It has two main components. It is made by attaching a metal beam into the inner walls of the tom drum, then attaching another metal beam on a hinge. This second beam, when tugged by a string, bends the pitch of the tom drum. The second component is the lever, which is controlled by hand pulling the string attached to the movable beam, creating a pitch change in the sound membrane of the tom drum. The lever is attached to the side of the drum and is hinged to control the string that pulls the moveable beam inside the drum.

Abstract: In some embodiments, an apparatus may include a hanging element and a frame coupled to the hanging element. The frame may include a shoulder portion and a load-bearing crossbeam coupled to the shoulder portion. The load-bearing crossbeam may include a collar at a center of the load-bearing crossbeam. The collar may be sized to releasably secure a portion of an instrument. In some embodiments, the instrument may be a musical instrument, a tool, or a firearm.

Abstract: The present invention discloses a guitar hanger apparatus, including a fixed base and a hanger body fixedly connects to the fixed base; the fixed hanger body further includes a fixing holder, applied to support the guitar and move down following the weight of the guitar, a self-locking mechanism connecting to and driven by the fixing holder; the self-locking mechanism comprises rotating shaft assemblies, built in the main body of the hanger, and swing arms connecting to the rotating shaft assemblies; the fixed holder comprises positioning casts, applied to fix the guitar, while a driving unit is arranged in the positioning cast, applied to drive the rotating shaft assemblies. The present invention achieves fixation and protection to a guitar by the weight of the guitar, which has a simple structure, and enables mass production thus brings benefits to the manufacturer.

Abstract: A clamp is attachable to a rim or rim region of a drum, and is suited for resiliently retaining an ancillary drumstick such that a terminal end of the ancillary drumstick is positioned above a skin of the drum, and advantageously spaced apart from the skin by a selected distance, allowing a single drumstick strike to the ancillary drumstick by another drumstick held by the drummer to create multiple hits by the clamped ancillary drumstick in response to a drum strike by the hand-held drum stick.

Abstract: An improved method of manually advancing through Steps in a Sequence using an electromechanical momentary switch, an electronic device capable of detecting changes in the state of said electromechanical momentary switch, and a Sequencer, whereby said electronic device will, upon detecting a change in the state of said electromechanical momentary switch, trigger said Sequencer to advance to the next Step in a Sequence and recall the Data Set associated with said Step.

Abstract: A magnet or array of magnets is attached to the inner surface of a stringed musical instrument such an acoustic guitar, allowing an external electronic device equipped with one or more magnet or ferromagnetic elements to be softly and removably mounted to the outer surface of the instrument without adhering to or disturbing the outer surface of the instrument. The inner-mounted magnet or magnet array may be attached permanently or removably to the inner surface of the instrument, and may have its position adjusted for optimizing the position of the externally mounted device.

Abstract: A signal generator for a musical instrument includes a voltage-controlled oscillator (VCO) comprising a control voltage input and a VCO output. The control voltage input controls a frequency of the VCO output. A controller is configured to control the voltage-controlled oscillator by inputting a sequence of analog control voltages from a plurality of preloaded control voltage inputs.