391 results about "AOD use frequency" patented technology

Controls for an optical scanner, such as a single fiber scanning endoscope (SFSE) that includes a resonating optical fiber and a single photodetector to produce large field of view, high-resolution images. A nonlinear control scheme with feedback linearization is employed in one type of control to accurately produce a desired scan. Open loop and closed loops controllers are applied to the nonlinear optical scanner of the SFSE. A closed loop control (no model) uses either phase locked loop and PID controllers, or a dual-phase lock-in amplifier and two PIDs for each axis controlled. Other forms of the control that employ a model use a frequency space tracking control, an error space tracking control, feedback linearizing controls, an adaptive control, and a sliding mode control.

A novel mechanism for simultaneous multiple signal reception and transmission using frequency multiplexing and shared processing. Multiple RF signals, which may be of various wireless standards, are received using one or more shared processing blocks thereby significantly reducing chip space and power requirements. Shared components include local oscillators, analog to digital converters, digital RX processing and digital baseband processing. In operation, multiple RX front end circuits, one for each desired wireless signal, generate a plurality of IF signals that are frequency multiplexed and combined to create a single combined IF signal. The combined IF signal is processed by a shared processing block. Digital baseband processing is performed on each receive signal to generate respective data outputs. Further, simultaneous full-duplex transmission and reception is performed using a single local oscillator. The phase / frequency modulation of the frequency synthesizer used in the TX is removed from the local oscillator signal for use in the receiver.

Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol, users and / or the like. The operational data collected from the system can include performance-characterizing operational data that typically is available in an ADSL system via element-management-system protocols. Generated estimates and / or approximations can be used in evaluating system performance and directly or indirectly dictating / requiring changes or recommending improvements in operation by transmitters and / or other parts of the communication system. Data and / or other information may be collected using “internal” means or may be obtained from system elements and components via email and / or other “external” means. The likelihood of a model's accuracy can be based on various data, information and / or indicators of system performance, such as observed normal operational data, test data and / or prompted operational data that shows operating performance based on stimulation signals. One example of such prompted data uses frequency carrier masks to approximate the Hlog of a given channel, including information regarding bridged taps, attenuation, etc. Scanning, wherein a number of line profiles are used in connection with DSL loops having known configurations, can be used to generate a database or library of loop configuration information. One or more of the line profiles can be used with an unknown DSL loop to generate operational data from the unknown DSL loop that is compared to the loop configuration information in the database, allowing identification of loop configuration information pertaining to the unknown DSL loop. The unknown DSL loop operational data also can be used to determine whether one or more bad splices are present on the unknown DSL loop and, in some cases, the approximate or exact bad splice(s) location(s).

The invention is suitable for the technical field of display processing of applications, and provides an application position display method and an application position display system and touch equipment. The method comprises the following steps of: predefining a position easiest to touch on a touch screen; acquiring the usage frequencies of the applications; and putting an application icon with the highest usage frequency at the position easiest to touch, and positioning other application icons around the position easiest to touch in a sequence from near to far according to the order of the usage frequencies from high to low for display. By defining a point easiest to touch by a user on a table and recording the usage frequencies of the table applications, the application with the highest usage frequency on the table is positioned at the position easiest to touch to make the user more conveniently find the required application from increasing applications so as to achieve better user operation experience.

A mobile communication system comprises a detecting unit to detect information concerning a moving speed of a mobile terminal, and a selection controlling unit to select a use frequency in a higher frequency band when the speed information detected by the detecting unit is a higher speed, while selecting the use frequency in a lower frequency band when the detected information is a lower speed, and assigning it to the mobile terminal. In a mobile communication system in which a relationship between a terminal moving speed (Doppler frequency) and transmission quality degradation is non-monotonous, the communication quality can be improved and the channel capacity can be increased.

A linear light-emitting diode (LED)-based solid-state universal lamp using a frequency sensing and control mechanism operates normally with both an electronic ballast and the AC mains. The frequency sensing and control mechanism automatically detects voltage types associated with output voltages from the ballast and the AC mains in a single-ended or a double-ended lamp fixture and makes proper management so that the universal lamp works for either case and in either fixture without operational uncertainty. When two shock protection switches are used in two lamp bases, the universal lamp fully protects a person from possible electric shock during initial installation and re-lamping.

A system and method that increases the capacity of a wireless network using frequency diversity. A user switches between channels of a network using a single network interface card in such a manner that nodes desiring to communicate overlap while disjoint communications mostly do not overlap. A driver is inserted into a device's networking stack and controls the network interface card using a plurality of virtual wireless network adapters. Packets for a recipient are queued when the recipient is not accessible on the node's channel. In one embodiment where multiple nodes are switching in and out of channel, the method changes part of a nodes channel hopping schedule to ensure concurrent connectivity in a channel for at least a brief time period such that packets can be received / transmitted with desired nodes.

Many portable electronic devices are designed to utilize only a touch-screen for text input, generally using some form of stylus to contact the screen. Such devices generally input text using some form of handwriting recognition, which is slow and often inaccurate, or an on-screen keyboard, which essentially requires the user to perform ''one-finger'' typing, often on a reduced-size keyboard. The Continuous Stroke Word-Based Text Input System allows someone to use a small on-screen keyboard to quickly enter words by drawing a continuous line that passes through or near the keys of each letter in a word in sequence without lifting the stylus (similar to a children's connect-the-dots drawing). The user traces an input pattern for a word by contacting the keyboard on or near the key of the first letter of the word, then tracing through each letter in sequence, lifting the stylus from the screen upon reaching the last letter. In one preferred embodiment, the user traces a small circle around each double-letter that occurs in the word to reduce ambiguity. In another preferred embodiment, a database of words is organized according to the first and last letters so that only a small number of words need to be explicitly scored for each input pattern. In another preferred embodiment, the expected path length corresponding to each word is stored in the database and is compared to the actual input path length entered to further limit the number of words to be explicitly scored. The input pattern is analyzed to identify inflection points of various types, each of which has a greater or lesser probability of corresponding to a letter of the word being input. Words are scored according to the average distance from each letter to the nearest inflection point (or to the nearest point of the traced line if there are more letters in the word than detected inflection points in the input pattern).

Provided is a method of managing, in a computer including a processor and a memory that stores information referred to by the processor, the memory. The memory includes a plurality of memory banks, respective power supplies of which are independently controlled. The respective memory banks include a plurality of physical pages. The method includes collecting the physical pages having same degrees of use frequencies in the same memory bank, selecting the memory bank, the power supply for which is controlled, on the basis of the use frequency, and controlling the power supply for the memory bank selected.

A receiver system for antenna diversity employing a single backhaul cable. A single backhaul cable couples a receiver to a plurality of antennas. The signals from the antennas are combined onto the single backhaul cable using frequency offsets, spread spectrum code division, time division, or a combination thereof. At the receiver, the signals from the antennas are decoupled. In the case of the frequency offsets, the antenna signals are decoupled by splitting the backhaul signal into a plurality of duplicate signals, frequency shifting selected ones of the duplicate signals, and correlating said frequency shifted signals. In the case of spread spectrum code division, the antenna signals are decoupled by splitting the backhaul signal into a plurality of duplicate signals and demultiplexing each of the duplicate signals with a different spread spectrum code. One or more antennas may be selected for communication in response decoupling the antenna signals.

An antenna switch having a simple configuration and realizing high isolation between transmitting and receiving is provided. The antenna switch has a first switch connected between a transmitting terminal 31 and an antenna terminal 4, a transmission circuit 9 whose one end is connected to the antenna terminal and which shifts a phase of a transmitting signal by 90 degrees at use frequency, a second switch 6 whose one end is connected to the other end of the transmission circuit 9 and whose other end is grounded, and a plurality of third switches 7, 8 connected between the other end of the transmission circuit 9 and the plurality of receiving terminals 32, 33.

A time division duplex (TDD) portable telephone relay device (and TDD system employing the same) for use with a radio base station and a portable telephone terminal within a terminal building, includes first and second distributors, a synthesizer, a predetermined-size (e.g., relatively small, internal) base station section, a position detecting unit, a synchronous receive section, and an exclusive telephone line connecting unit. With such a structure, transmission / reception using a frequency channel, other than frequency channels assigned to a radio zone where the terminal building exists, is conducted between the portable telephone terminal within the terminal building and the radio base station through the predetermined-size base station section. The predetermined-size base station section executes the operation adapted to TDD based on a synchronous signal from the synchronous receive section.

A time correlated single photon counting system having a programmable delay generator triggered by a laser fire event detector. The system may be used for chemical agent detection based on Rayleigh scattering using optical time domain reflectometry techniques. The system may also be used for Raman detection using frequency to time transformations.

The present invention provides for a system for operating a communication device (20) for reception of scheduled intermittent information messages (22) with a dual mode timer (70) that extends battery life. A controller (50) schedules the timer (70) to power down all idle components of the device (20) between message receptions in a power saving sleep mode to conserve battery power. During active mode when the device is fully active in reception of messages, the timer (70) uses a reference oscillator (90) with a relatively high frequency to support digital processing by the receiver (26). During sleep mode when only the timer is powered on, a much lower frequency sleep oscillator (96) is used to maintain the lowest possible level of power consumption within the timer itself. The timer (70) has provision for automatic temperature calibration to compensate for timing inaccuracies inherent to the low-power low-frequency crystal oscillator (96) used for the sleep mode. The resultant improvement in timer accuracy during sleep mode eliminates the need for an initial reacquisition period following wake up in active mode, thereby reducing battery drain in active mode as well.

The present invention provides a high accuracy, inexpensive diagnosis method and system diagnosing an abnormality of a 10 rpm or less very low speed roller bearing using an acoustic signal, that is, detects an acoustic signal emitted from a roller bearing of a 10 rpm or less ultralow speed rotating machine using a sensor having a sound pickup performance of 10 kHz or less, uses frequency analysis to find the spectrum distribution, processes this to obtain the frequency analysis waveform, compares the spectral average value or effective value of a frequency of the natural frequency of the bearing or more of this with a reference value, and judges that the bearing is abnormal when this spectral average value or effective value exceeds the reference value.

The application relates to a method of improving a user's perception of an input sound. The application further relates to an audio processing device and to its use. The object of the present application is to increase the sound quality of a sound signal as perceived by a user, e.g. a hearing impaired user. The method comprises a) Defining a critical frequency fcrit between a low frequency range and a high frequency range; b) Analyzing an input sound in a number of frequency bands below and above said critical frequency; c) Defining a cut-off frequency fcut below said critical frequency fcrit; d) Identifying a source frequency band above said cut-off frequency fcut; e) Extracting the envelope of said source band; f) Identifying a corresponding target band below said critical frequency fcrit; g) Extracting the phase of said target band; h) Combining the envelope of said source band with the phase of said target band. This has the advantage of increasing the sound quality, and the potential to further improve speech intelligibility in frequency transposition, e.g. frequency lowering systems. The invention may e.g. be used in communication devices, such as telephones, or listening devices, e.g. hearing instruments, headsets, head phones, active ear protection devices or combinations thereof.

A tunable super-lens (TSL) for nanoscale optical sensing and imaging of bio-molecules and nano-manufacturing utilizes negative-index materials (NIMs) that operate in the visible or near infrared light. The NIMs can create a lens that will perform sub-wavelength imaging, enhanced resolution imaging, or flat lens imaging. This new TSL covers two different operation scales. For short distances between the object and its image, a near-field super-lens (NFSL) can create or enhance images of objects located at distances much less than the wavelength of light. For the far-zone, negative values are necessary for both the permittivity ε a permeability μ. While well-structured periodic meta-materials, which require delicate design and precise fabrication, can be used, metal-dielectric composites are also candidates for NIMs in the optical range. The negative-refraction in the composite films can be made by using frequency-selective photomodification.

A novel mechanism for avoiding RF collisions using frequency synchronization techniques. In one embodiment, a solution to the problem comprises dividing the channel map into different channel groups wherein each group includes a minimum number of channels. The composition of the channel groups depends on the number of piconets and the number of good and bad available channels. Thus, collisions are avoided by assigned each piconet a channel group where the channels in one group do not overlap the channels in other groups. As the channel map changes over time, the channel groups are dynamically updated with the new good and bad channels. In a second embodiment, all the neighboring piconets are configured to use the same channel sequence order. Each piconet, however, is assigned a different starting frequency (i.e. channel). Thus, collisions are avoided since at any instance in time, no two piconets are using the same channel.

Devices, methods and systems for determining one or more properties of at least one fluid sample. A tube configured to receive the at least one fluid sample wherein the tube is placed in a pressure housing. Further, an excitation source configured to generate vibration of the tube whereby a circulation of an electrical current along a portion of the tube is subjected to at least one magnetic field produced by at least one magnet. Further still, at least one vibration sensor that converts vibrations of the tube into a measurement signal. Finally, a processor that receives the measurement signal determines a resonant frequency from the measurement signal using a frequency measuring device to determine a property of the one or more properties of the at least one sample fluid.

Variable liquid crystal devices for controlling the propagation of light through a liquid crystal layer use a frequency dependent material to dynamically reconfigure effective electrode structures in the device. The frequency of a drive signal that generates an electric field in the device may be varied, and the frequency dependent material has different charge mobilities for the different frequencies. At a low charge mobility, the frequency dependent material has little effect on the existing electrode structures. However, at a high charge mobility, the frequency dependent material appears as an extension of the fixed electrodes, and may be used to change the effective electrode structure and, thereby, the spatial profile of the electric field. This, in turn, changes the optical properties of the liquid crystal, thus allowing the optical device to be frequency controllable.

Disclosed is a radar signal clustering method using frequency modulation characteristics and combination characteristics of signals including: a first step of assigning pulses of received radar signals to cells consisting of parameters including radio frequency (RF) and angle of arrival (AOA) of the pulses; a second step of calculating a pulse density distribution of each cell using a kernel density estimator; a third step of extracting a corresponding cell as a frequency fixed cluster if the calculated pulse density distribution is greater than a threshold of the frequency fixed cluster; a fourth step of making cell groups by merging remaining cells that are not extracted as the frequency fixed clusters; a fifth step of calculating a pulse density distribution of each cell group by using the kernel density estimator for each cell group; and a sixth step of comparing the calculated pulse density distribution for each cell group with each threshold according to a signal combination type of frequency agile clusters, thus to classify and extract each cell group according to the signal combination type.

A method, device and system for responsive load management using frequency regulation credits. The method includes using an AC frequency measuring device, measuring a current AC frequency on an AC power line; using a power consumption measuring device, measuring a current power consumption on the AC power line over a period of time equal to a sampling interval; calculating a power consumption moving average of a last N power current power consumptions measured, where N is a positive integer greater than 1; generating credits or debits based on the current power consumption, the current AC frequency and the power consumption moving average; adding the credits or debits to a frequency regulation credit; and for each next sampling interval repeating measuring the current AC frequency, measuring current power consumption, calculating the power consumption moving average, generating the credits or debits, and adding the credits or debits to the frequency regulation credit.

An apparatus and method are described for implementing an exclusive lower level cache (LLC) policy within a computer processor. For example, one embodiment of a computer processor comprises: a mid-level cache circuit (MLC) for storing a first set of cache lines containing instructions and / or data; a lower level cache circuit (LLC) for storing a second set of cache lines of instructions and / or data; and an insertion circuit for implementing a policy for inserting or replacing cache lines within the LLC based on values of use recency and use frequency associated with the lines.

A method, apparatus, and computer usable program code for managing trace records. A set of traces is generated for a set of processors. A trace is generated in the set of traces for each processor within the set of processors. A record of the frequency change is stored in the set of traces in response to a frequency change in a processor within the set of processors. Trace records are combined in the set of traces using the record of the frequency change to determine a correct order for the records.

The invention relates to a device management method for realizing multi-voice frequency fast synchrony based on audio sharing. The method comprises the following steps that a control terminal is connected with each device; a device with the highest frequency is selected by the control terminal as a host device, if selection fails, a device with the highest priority is selected as the host device, and if the selection of the device with the highest priority fails, a device with the highest response speed is selected as the host device, and the other devices are used as slave devices; or the device with the highest priority is selected as the host device by the control terminal, if the selection of the device with the highest priority fails, a device with the highest using frequency is selected as the host device by the control terminal, and if the selection of the device with the highest using frequency fails, the device with the highest response speed is selected as the host device, and the other devices are used as the slave devices. According to the method, the host device is selected from the devices to be communicated with the control terminal, and the slave devices do not need to be communicated with the control terminal, so that the network load is reduced, and acquired audio contents can be played synchronously in multiple rooms.

The invention discloses a hand-held mobile terminal standby method, a microprocessor and a mobile phone, and the method comprises the steps of obtaining a physical state parameter of a terminal when the hand-held mobile terminal is determined to be in the non-operation state; judging whether the physical state parameter meets the corresponding preset standby condition or not; and controlling the terminal to enter into the standby state immediately when the physical state parameter meets the corresponding preset standby condition. The hand-held mobile terminal standby method disclosed by the embodiment of the invention can control and implement the standby operation of the terminal through the result of judging whether the physical state parameter of the terminal meets the corresponding preset standby condition or not, as long as the terminal meets the standby condition, the terminal can enter into the standby state immediately, thereby solving the problems of complicated operation and waste of resources in the standby methods in the prior art. Simultaneously, the hand-held mobile terminal standby method can reduce the using frequency of buttons of the terminal and prolong the service life of the terminal.

A method, apparatus, and computer usable program code for managing trace records. A set of traces is generated for a set of processors. A trace is generated in the set of traces for each processor within the set of processors. A record of the frequency change is stored in the set of traces in response to a frequency change in a processor within the set of processors. Trace records are combined in the set of traces using the record of the frequency change to determine a correct order for the records.