2721 results about "Digital input" patented technology

A novel apparatus and method for a fully digital quadrature architecture for a complex modulator. The complex modulator can substitute for existing prior art analog quadrature modulator structures and those based on a digital polar architecture (r, θ). The modulator effectively operates as a complex digital-to-analog converter where the digital inputs are given in Cartesian form, namely I and Q representing the complex number I+jQ, while the output is a modulated RF signal having a corresponding amplitude and phase shift. The phase shift being with respect to a reference phase dictated by the local oscillator, which is also input to the converter / modulator. Several embodiments are provided including modulators incorporating dual I and Q transistor arrays, a single shared I / Q transistor array, modulators with single ended and differential outputs and modulators with single and dual polarity clock and I / Q data signals.

A surveillance system and method having at least one wireless input capture device ICD(s) and a corresponding digital input recorder (DIR) and / or another ICD, and a security key for ensuring or denying access, including the steps of providing base system; at least one user accessing the DIR via user interface either directly or remotely; the DIR and / or ICD searching for signal from the ICD(s) and establishing communication with them, permitting or prohibiting data transmission and / or access if the security key is connected to the system components, thereby providing a secure surveillance system having wireless communication for monitoring a target environment.

A processor operates on samples of a digital output signal to determine samples of a digital correction signal. The output signal samples are directed to an output channel for transmission from a speaker. The digital correction signal samples are supplied to a first digital-to-analog converter for conversion into an analog correction signal. The subtraction circuit generates a difference between a first analog signal provided by a microphone and the analog correction signal. The analog correction signal is an estimate of a contribution to the first analog signal due to a direct path transmission between the speaker and the microphone. The processor also receives a digital input signal derived from the difference signal, and, performs acoustic echo cancellation on the digital input signal to obtain a resultant signal. The acoustic echo cancellation is configured to remove contributions to the digital input signal due to reflected path transmissions.

An information management and synchronous communications system and method facilitates database equilibrium and synchronization with wired, wireless and Web-based systems, user-friendly and efficient generation of computerized menus and reservations with handwritten / voice modifications for restaurants and other applications that utilize equipment with nonstandard graphical formats, display sizes and / or applications for use in remote data entry, information management and communication with host computer, digital input device or, remote pager via standard hardwired connection, the internet, a wireless link, printer or the like.

A configurable operator panel that uses a tactile sensor with electrically conductive elastomer and appropriate electronics is disclosed herein. The device relies on a robust and inexpensive tactile sensor that senses the touch position (and may or may not sense touch pressure as well). The physical interface is easily configurable along with the electronics, which execute the desired function based on touch location and pressure. The configurable operator panel is designed to communicate with most industrial automation equipment, including but not limited to, motion control equipment, programmable logic controllers (PLC), personal computers, and can be made to control other types of machines requiring external analog or digital input.

A primary graphical input device such as a scroll bar or slider is displayed in order to allow graphical input and adjustment of at least one parameter, such as the page number of a displayed document in a word-processing program or a range value in a data visualization routine. Whenever a user activates the graphical input device, the user may set and change the parameter not only purely graphically, as in conventional applications, for example by dragging some portion of the primary device by moving a mouse, but also by entering a specific value into the secondary graphical input device, for example, via a keyboard. The invention thus provides an intuitive way for a user to quickly and easily navigate graphical objects not only by using pointing devices, but also by entering alphabetic or numeric input, all while maintaining the inherent advantages of “point and click” graphical displays.

A fully integrated, programmable mixed-signal transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC does not use spiral inductors and instead includes transmission line inductors allowing for improved scalability. Components of the transceiver are programmable to allow the transceiver to switch between different frequency bands of operating. Frequency switching can be accomplished though the content of digital registers coupled to the components.

A method for the correction of brightness and uniformity variations in OLED displays, comprising: a) providing an OLED display having a plurality of light-emitting elements with a common power signal and local control signals; b) providing a digital input signal for displaying information on each light-emitting element, the signal having a first bit depth; c) transforming the digital input signal into a transformed digital signal having a second bit depth greater than the first bit depth; and d) correcting the transformed signal for one or more light-emitting elements of the display by applying a local correction factor to produce a corrected digital signal. In accordance with various embodiments, the present invention may provide the advantages of improved uniformity in a display that reduces the complexity of calculations, maintains a consistent bit-depth for all light-emitting elements, provides a pre-determined output brightness, improves the yields of the manufacturing process, and reduces the electronic circuitry needed to implement the uniformity calculations and transformations.

An audio path is constructed to include a multi-bit sigma-delta converter for converting an N-bit digital input to an n-bit output representing an over-sampled, lower resolution n-bit version of the N-bit digital input; a formatter for converting the n-bit output to an m signal output (e.g., as a thermometer code, a SDM format or a PWM format); an m-by-m switching matric for receiving the m output signals and for reordering the m output signals, m class-D drivers individual ones of which are driven by one of the reordered m output signals for driving one of m speakers; and a dynamic element matching (DEM) block coupled to the switching matric for controlling the reordering of the m output signals driving the m class-D drivers for spreading the distortion due at least to driver-speaker pair mismatch to wide band noise. The DEM may operate to generate white noise, or it may generate shaped (colored) noise.

A transceiver comprises an amplifying circuit for amplifying an input signal to produce an output signal. A power supply is operable for varying the level of power supplied to the amplifying circuit in response to variation of an input signal envelope directed to the power supply. A processing circuit is operable for digitally detecting the input signal envelope to provide variation of the power supply level. The processing circuit is further operable for digitally delaying the digital input signal envelope to time align the power supply level with the input signal.

In accordance with one or more embodiments of the present invention, a player input is used as a value for a variable in an algorithm of a gaming device. The algorithm, in turn, is used to generate a pseudorandom value. The pseudorandom value, in turn, is used to determine an outcome for a game of the gaming device. Accordingly, a player is allowed to influence the outcome of a game by providing an input. The input may comprise, for example, a numeric input, a biometric input, or a physical input. The latter two types of inputs may be converted to a numeric form before being used in the algorithm. In accordance with one or more embodiments, a player input comprises selection of an algorithm for use in generating a pseudorandom value to be used to determine an outcome for a game of a gaming device. In accordance with one or more embodiments, a player input comprises a player selection of a visual representation of a pseudorandom value to be used to determine an outcome for a game of a gaming device.

An aided ear bud device is provided that operates as a hearing aid device as well as an ear bud device for a wireless phone. The aided ear bud normally operates as a hearing aid device. The aided ear bud state is changed by a verified input from a wireless phone. Upon the change in state, the microphone input from the aided ear bud is remotely output to the wireless phone while the incoming transmission from the wireless phone is combined with the microphone input and output to the user. The ear bud device can be modified to receive analog or digital inputs from other outside sources.

An apparatus that provides multi-mode digital input to computers, tablets, personal digital assistants, global positioning satellite systems, and other such devices. Digital information can be transferred via passive inputs such as resistive or capacitive touch using a human finger or a stylus, via passive acoustic surface wave or electro-optical devices, via active technology such as inductive and RF inputs, and via active wired inputs such as a mouse or a touch pad. The preferred input mode can be selected by an operator, or simultaneous input modes can be sensed, differentiated, and prioritized by the apparatus.

A mobile device is provided that includes a digit input that can be manipulated by a user's fingers or thumb, an air conduction microphone and an alternative sensor that provides an alternative sensor signal indicative of speech. Under some embodiments, the mobile device also includes a proximity sensor that provides a proximity signal indicative of the distance from the mobile device to an object. Under some embodiments, the signal from the air conduction microphone, the alternative sensor signal, and the proximity signal are used to form an estimate of a clean speech value. In further embodiments, a sound is produced through a speaker in the mobile device based on the amount of noise in the clean speech value. In other embodiments, the sound produced through the speaker is based on the proximity sensor signal.

A programmable adaptive resistance exercise system and method. New type of resistance allows a user to maximize amount of muscle growth benefit while minimizing the effort to attain that level. Resistance level may be controlled by computer based on position or any derivate thereof with respect to time. Resistance is adaptive since force level used throughout exercise range is based on current and past performance data. Level of effort and force versus time profile combinations are unlimited. Rest calculated based on the current and past performance data. May utilize hardware having a motor, an exercise interface (such as an bar or handle for example), a position sensor, digital input device to identify someone, computer configured to control the motor and exercise interface using current and past personal training data, calculate an exercise program based on preference and a time for subsequent workout, optionally alert a user when time to workout.

A programmable system-on-a-chip integrated circuit device comprises a programmable logic block, a non-volatile memory block, an analog sub-system, an analog input / output circuit block, and a digital input / output circuit block. A programmable interconnect architecture includes programmable elements and interconnect conductors. Ones of the programmable elements are coupled to the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input / output circuit block, the digital input / output circuit block, and to the interconnect conductors, such that inputs and outputs of the programmable logic block, the non-volatile memory block, the analog sub-system, the analog input / output circuit block, and the digital input / output circuit block can be programmably coupled to one another.

A surveillance system and method with at least one wireless input capture device ICD(s) and a corresponding digital input recorder (DIR) and / or another ICD, including the steps of providing base system; at least one user accessing the DIR via user interface either directly or remotely; the DIR and / or ICD searching for signal from the ICD(s) and establishing communication with them; providing DIR interface and setup options, for providing a secure surveillance system having wireless communication for monitoring a target environment.

An enhancement that reduces the digital interface rate of analog-to-digital (A / D) and digital-to-analog (D / A) converters through the use of compression and decompression is described. The present invention improves A / D converters by compressing the sampled version of the A / D converter's analog input signal in real time, thereby significantly decreasing the required bit rate of the A / D converter's digital interface. Similarly, the present invention improves D / A converters by decreasing the required bit rate of the D / A converter's digital interface. D / A converters enhanced by the present invention include a decompressor that decompresses the D / A converter's compressed digital input in real time, prior to conversion to an analog output signal. The present invention's simplicity and its ability to be implemented using multiple compression and decompression elements allow its use in A / D and D / A converters with arbitrarily high sampling rates. By selecting a desired compression ratio during lossy compression, users of the present invention can precisely control the bit rate of the A / D and D / A converter's digital interface. Users of the present invention can dynamically choose the desired balance between the quality and the bit rate of A / D and D / A converters by adjusting various compression and decompression control parameters.

In a first aspect the present invention provides a compact high efficiency driver suitable for driving a loudspeaker, such as a miniature loudspeaker for mobile phones or hearing aids. The driver comprising an interface for receiving an input signal, a three-level modulator, and a three-level H-bridge. The interface may be adapted to receive a digital input signal. In a preferred embodiment of the driver the H-bridge is controlled by a correction circuit which is operated by a Return-To-Zero scheme. In a further preferred embodiment the driver comprises a supply voltage step-up circuit for increasing a voltage supplied to the H-bridge. In a second aspect the present invention provides a miniature loudspeaker assembly having a built-in driver. In a third aspect the present invention provides a mobile device with a built-in miniature loudspeaker assembly.

A surveillance system and method for remote viewing of inputs associated with at least one wireless input capture device ICD(s) monitoring a target environment, and a corresponding digital input recorder (DIR) and / or another ICD, including the steps of providing base system and at least one user accessing the DIR or ICD(s) via user interface remotely from a remote viewing device.

A method, system and computer program for creating a digital workflow associated with the completion of a paper form is provided. An electronic clipboard includes a panel for receiving a paper form, a computer including a clipboard computer application, and an input device that completes the paper form with handwritten input data and also created digital signals corresponding to the handwritten input data. The computer application interprets the digital signal data so as to define digital input data, which corresponds to the handwritten input data. The electronic clipboard also includes verification / correction facility that enables the display of the digital input data and verification and correction thereof using a series of input devices provided on the electronic clipboard. The electronic clipboard is linked to a remote computer. The remote computer includes a forms creation and management application for the creation of the electronic forms, and definition of rules for processing digital input data includes in the various fields of the electronic forms. In a server implementation of the invention, the remote computer is an application server that provides access to a plurality of software utilities for processing the digital input data included in the electronic forms. The application server enables processes such as financial transactions associated with electronic forms, transmission of selected digital input data to other computer systems, and field level encryption. Another aspect of the invention is a point of sale device that include the electronic clipboard.

Systems and methods receive a digital signal and generate an analog signal indicative thereof. In one embodiment, a system includes a DAC that receives a multi-bit digital signal, generates at least two analog signals each indicative of the value of the multi-bit digital signal, and filters two or more of the at least two analog signals. In another embodiment, a system includes a DAC that receives digital input signals at an input data rate and outputs analog signals indicative of the digital signals to a signal conditioning stage at an output data rate different than the input data rate.

A security apparatus including a number input device (302), an address register (312) responsive to the number input device, an encryption schema memory (316) addressable by the address register to produce an output code and a relative address code, and address incrementing logic (310) responsive the relative address code and operative to increment the address register. The apparatus also preferably includes a PIN register (304) coupled to the number input device, a public code register (306) coupled to the number input device, and merging logic (308) merging outputs of the PIN register and the public code register to be input to the address register. The apparatus also preferably includes an output shift register operative to shift out the output code of the encryption schema memory. The encryption schema memory can be read only memory, writeable memory, or both.

A DA converter includes a first DA conversion section for obtaining an analog output signal in accordance with a digital input signal value, and a second DA conversion section for obtaining an analog gain control output signal in accordance with a digital gain control input signal value. In the DA converter, the gain control of the analog output signal generated by the first DA conversion section is performed on the basis of the gain control output signal generated by the second DA conversion section.

A method and apparatus compensate for a non-linear characteristic of a wideband power amplifier in a transmitter for a communication system, which has the wideband power amplifier for amplifying a digital input signal. The method involves the steps of (a) generating an address based on the digital input signal, reading a distortion control value corresponding to the address from a look-up table, and applying the read distortion control value to the digital input signal to predistort the digital input signal; (b) frequency up-converting the predistorted signal and amplifying the frequency up-converted signal; (c) frequency down-converting the amplified signal and compensating for a delay of the frequency down-converted signal; and (d) updating a predetermined distortion control value in the look-up table to compensate for an error value generated in the power amplifier and an analog path occurring in steps (b) and (c) based on the compensated signal.

A system, method and computer program for an apparatus is described. An apparatus is a very convenient, plug-and-play, ultra small, smart device that lets the end-users to host their websites at computer peripheral port. When said device is plugged in one of the computer peripheral ports: Universal Serial Bus (USB), Secure Digital Input and Output (SDIO), Compact Flash (CF), Cardbus, Peripheral Component Interconnect (PCI), PCI-Express and ExpressCard; it shall function as a dedicated web hosting device powerful and robust enough to handle web hosting functions for Personal Home Page, File Transfer Protocol (FTP) Files Server, Streaming media, Common Gate Interface (CGI) scripts, Active Server Pages, or Game Server.

The disclosed invention provides apparatus and methods that can convert frequencies of time-encoded signals. In one aspect, a down-converter circuit includes low-pass filters, a switch, a time encoder, and an output low-pass filter. In another aspect, an up-converter circuit includes an analog or digital input time encoder, low-pass filters, a switch, an output time encoder, and a time-encoded band-pass filter. In yet another aspect, a complete receiver system is provided. The receiver system can operate effectively with signals in the radio frequency range.

A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.

A readily scalable modular progammable integrated circuit (IC) with improved power management is provided. An IC is described that contains one master controller module and a multiplicity of slave modules that include power-supplying functions, battery management functions, and analog and digital input-output functions. The master controller module configures the slave modules by writing data to the slave modules' configuration registers through the communication network. Each module contains a multiplicity of configuration registers that determine the module's operational and parametric characteristics. Programmability is achieved by configuring the modules to respond to appropriate signals on the configurable interconnection network.