133 results about "Electric response" patented technology

Specific ambient and user behaviour sensing systems and methods are presented to improve friendliness and usability of electronic handheld devices, in particular cellular phones, PDAs, multimedia players and similar.

The improvements and special functions include following components:

• • a. The keypad is locked/unlocked (disabled/enabled) and/or the display activated based on the device inclination relative to its longitudinal and/or lateral axes.
  • b. The keypad is locked if objects are detected above the display (for example the boundary of a bag or pursue).
  • c. The keypad is locked/unlocked (disabled/enabled) and/or the display activated based on electric field displacement or bio-field sensing systems recognizing the user hand in any position behind the handheld device.
  • d. The electric response signal generated by an electric field through the user hand in contact with a receiver plate is used to identify the user and in negative case lock the device.
  • e. Connection with incoming calls is automatically opened as soon as a hand is detected behind the device and the device is put close to the ear (proximity sensor).
  • f. The profile (ring-tone mode, volume and silent mode) can be changed just putting the device in a specific verse (upside up or upside down).
  • g. Has a lateral curved touchpad with tactile markings over more surfaces to control a mouse pointer/cursor or selection with the thumb finger.

A method for determining at least one characteristic of an antenna requiring: a) positioning an antenna in a space surrounded by a waveguide; b) feeding an electric excitation signal (u_tx(t)) into a feed connection of the waveguide; c) receiving the electric response signal (u_rx(t)) emitted by the antenna resulting from the excitation signal (u_tx(t)); d) determining at least one characteristic of the antenna from a portion of the response signal (u_rx(t)) and a corresponding portion of the excitation signal (u_tx(t)), where the portion of the response signal (u_rx(t)) is evaluated in the time domain and satisfies the following conditions: (i) only one or more waves of the electromagnetic field caused by the excitation signal (u_tx(t)) and running from the feed connection towards the antenna exist at the location of the antenna; and (ii) the electromagnetic field at the location of the antenna is a TEM field.

A catheter device for ablating biological material is described. The catheter device comprises (a) a longitudinal structure; (b) an applicator for ablating the biological material, wherein the applicator is installed at the longitudinal structure; (c) a first electrode being attached to the longitudinal structure; (d) a second electrode being attached to the longitudinal structure; (e) an interface being connected directly or indirectly to the longitudinal structure; (f) a first lead electrically connecting the first electrode with the interface; and (g) a second lead electrically connecting the second electrode with the interface. The interface is configured for electrically connecting the first lead and the second lead with a measurement device for electrically stimulating the first electrode and the second electrode and for detecting an electric quantity being associated with an electric response of an biological material being located in between the two stimulated electrodes. Further, a catheter system with such a catheter device is described.

The invention relates to an electric response infrared reflection window and infrared reflection method. The electric response infrared reflection window comprises two opposite light transmitting substrates which are electrically connected with two electrodes of a power source assembly respectively, a carrier liquid crystal filling the space between the two light transmitting substrates, and liquid crystal thin film fragments mixed in the carrier liquid crystal, wherein the liquid crystal thin film fragments are arranged parallel with the light transmitting substrates under action of the carrier liquid crystal in a directional mode. The liquid crystal thin film fragments and the carrier liquid crystal are mixed, a mixture is injected between the two light transmitting substrates capable of having access to voltage, the steering direction of the carrier liquid crystal is controlled by driving the voltage, and therefore the liquid crystal thin film fragments deviate to adjust the reflection and transmission of infrared light, and the purpose that the reflection window can freely adjust the reflecivity of the infrared light is achieved. The electric response infrared reflection window and infrared reflection method can be applied to the building home furnishing field.

The present invention provides a novel electronic investigative device for identification of truth from individuals who have committed an act of offence. The invention also provides a method for identification of truth based on bio-electric responses that are elicited by presentation of a unique design of nestled probes. The method advantageously utilizes the experiential knowledge present in a subject's brain that elicits a bio electric response to the presentation of probe. The invention is completely non-invasive and does not require an active participation of the subject. Further, the method is fully automated to enable tamper proof results.

A method and apparatus for utilizing the benefits of encoded signal transmission and reception to enhance the performance of medical testing devices (100) adapted to evoke and measure biological response signals such as auditory evoked potentials (AEP), and the auditory brainstem response (ABR) signals in particular. Auditory stimuli, such as clicks, are presented to the ear of a human patient, in a predetermined encoded sequence, resulting in the generation of auditory responses and bio-electric response signals in the human patient. These response signals from the patient are acquired and observed, and are processed according to the predetermined encoded sequence in which the auditory stimuli were presented to the patient's ear in order to extract the desired auditory evoked potential signals or ABR signals.

The invention discloses an electric response infrared reflection device and a preparation method thereof. The electric response infrared reflection device comprises three light-transmitting conductive substrates which are oppositely arranged, wherein the two adjacent light-transmitting conductive substrates of the three light-transmitting conductive substrates are respectively packaged to form a first adjusting area and a second adjusting area; the first adjusting area and the second adjusting area are filled with liquid crystal layers; each of the liquid crystal layers comprises a mixed liquid crystal material; the mixed liquid crystal material comprises a chiral nematic phase liquid crystal, a monomer, a photoinitiator and a chiral dopant; the spiral direction of the chiral nematic phase liquid crystal in the first adjusting area is opposite to the spiral direction of the chiral nematic phase liquid crystal in the second adjusting area, so that the total reflection of an infrared band can be realized. The monomer is polymerized into a netted polymer under the effect of the photoinitiator, the netted polymer can capture the impurity positive ions in a liquid crystal mixture, the adjusting areas are placed under an electric field, the chiral nematic phase liquid crystals are moved under the driving of the motion of the impurity positive ions and the screw pitches of the chiral nematic phase liquid crystals have a certain gradient, so that the infrared reflection bandwidth is widened.

The invention intends to provide a dental diagnostic device capable of detecting whether or not an electric leakage path which departs from a root canal, bypassing an apex is contained in a conductive path. The dental diagnostic device includes a measuring electrode, an oral electrode, a measurement signal applying means, a measuring means and a detecting means. The measuring electrode is inserted into a root canal of a tooth which is a diagnosing object. The oral electrode is brought into electric contact with oral mucosa. The measurement signal applying means applies a measurement signal in between the measuring electrode and the oral electrode. The measuring means obtains data corresponding to the electric characteristic of at least part of a conductive path between the measuring electrode and the oral electrode based on measurement of electric response to the measurement signal. The detecting means detects to see whether or not an electric leakage path bypassing an apex of a tooth is contained in a conductive path by applying a predetermined determination standard to data.

According to one embodiment, an acoustic apparatus comprises an electro-acoustic transducer with a first function of converting an electric signal to an acoustic signal and a second function of converting an acoustic signal to an electric signal, the electro-acoustic transducer configured to convert a measuring electric signal to a measuring acoustic signal using the first function, and to convert an acoustic response signal responding to the measuring acoustic signal from an object to an electric response signal using the second function, a switch configured to switch the first function to the second function, or vice versa, and a switch controller configured to control a function switching of the switch in accordance with a sound source signal.

The invention relates to an electric connection device of a base and a main body, which comprises a base and a main body, wherein the base and the main body are connected by a first coupler; the first coupler comprises a first connector and a first appliance socket, wherein the first connector is arranged on the base, and the first appliance socket is arranged on the main body; the main body comprises a working load; an input power supply is transmitted onto the first appliance socket by the first connector of the base and is electrically connected with the working load of the main body directly or indirectly; and a second coupler is also connected between the base and the main body, an electric response device which responds the working state of the main body is arranged in the base, andthe working state of the main body is transmitted to the electric response device of the base by the second coupler. The invention realizes the display of the working state of the main body on the base, overcomes the problem of too high temperature rise or space insufficiency because the electric response device is arranged on the main body, can realize the diversification of a display mode and enhances the flexibility of the design of the main body part of a product greatly.

The invention provides a device capable of realizing dynamic mimic camouflage and stealth, and relates to a device capable of realizing mimic stealth. According to the device, image capturing equipment is used for acquiring the image of the external environment and monitoring the camouflage effect; an image processing system is used for processing the environment image, performing signal conversion, and respectively transmitting different signals to an active matrix control substrate; the color change of an electric response structure color changing unit is realized by using an electrical structure color changing unit as a core device; and the display of the environmental simulation image is realized by responding to different signals. The device can enable the surface of an object to show an image similar to the surrounding environment, completes the perfect mimic stealth, and achieves the effect of real-time response to stealth with the change of time and environments. The device can be used for camouflage and stealth design of any object, and has great application prospect in the fields of camouflage, display and the like.

The invention relates to a method and an arrangement of testing a device, such as a peripheral device, in a mobile station. The arrangement comprises a signal generator for generating a test signal for the device under test, a measurement unit integrated into the mobile station for measuring en electric quantity from a feeding line of the device under test, and an analyser for determining an electric response of the device to the test signal by using the electric quantity. According to the invention, at least a portion of the testing procedure composed of generating the test signal and determining the electric response of the device is performed using a functional unit, such as the signal generator or the analyser, integrated into the mobile station.

The invention relates to a method for correcting nonlinear response of a photomultiplier and a photoelectric detector and a spectrophotometer obtained based on the same, solving the problem of nonlinear response of the current photomultipliers and the problem of low transmittance accuracy of the spectrophotometer caused by the previous problem. The method is characterized by obtaining a correction equation by correcting the photo-electric response curve of the photomultiplier, thereby correcting the electric signal output by the photomultiplier. The photoelectric detector comprises the photomultiplier and a nonlinear response corrector. The spectrophotometer comprises a light source, a monochrometer, a sample cell, the photoelectric detector and a calculation and display device. The photoelectric detector can be used for high accuracy photoelectric detection, and the spectrophotometer can be used for qualitative and quantitative analysis and corresponding optical measurement of the substances.

Electrochemical power cells having an open-cell architecture for electrically powering an implantable medical device system include a first and a second electrode assembly, wherein at least one is a biocompatible hermetically sealed anode assembly (e.g., that of a lithium anode assembly). The power cell can be a biological lithium semi-fuel cell in which a bodily constituent partakes in the cell discharge reaction at the cathode as an active reagent. The active cathode reagent can be oxygen supplied from the body. In a particularly suitable application, the biological lithium semi-fuel cell provides electrical power to a cardiac pacemaker device, such as for a novel cardiac pacemaker system.

The invention relates to a piezoelectric ceramic material with high voltage electric response and a high Curie temperature and a preparation method thereof. A stoichiometric ratio accords with a chemical general formula (1-x)(K0.48Na0.52)(Nb1-ySby)O3-xBi0.5(Na0.8K0.2)0.5ZrO3; wherein x is more than or equal to 0.02 and less than or equal to 0.04, and y is more than or equal to 0.02 and less than or equal to 0.04. The preparation method comprises the following steps of: (1), preparing a base material according to the stoichiometric ratio and a sodium niobate (NaNbO3) sheet template for texturegrowth of crystal grains; (2), weighing the base material, the template and a MnO2 sintering aid according to the stoichiometric ratio, placing the weighed base material, template and MnO2 sintering aid in a nylon tank, adding a solvent, a dispersant and a binder, and uniformly stirring the mixture to obtain casting slurry with good fluidity; (3) casting the slurry to obtain a strip-shaped thick film, cutting the thick film after the thick film is dried, laminating and hot pressing the thick film into a ceramic blank body; (4) removing the blank body from the adhesive, and sintering the blankbody by using a two-step sintering process to obtain lead-free textured piezoelectric ceramic, wherein the lead-free textured piezoelectric ceramic has high piezoelectric performance and a high Curietemperature. The environment-friendly lead-free piezoelectric ceramic material has higher practical value in the fields of low and medium temperature sensors, transducers, drivers and the like.

The invention discloses a super-hydrophobic piezoresistive pressure sensor and a preparation method and application thereof. The preparation method comprises the steps of: adding glutaraldehyde into an acetic acid mixed solution of carboxylated multi-walled carbon nanotubes and chitosan for crosslinking for 0.5-2 hours, and performing freeze drying for 24-48 hours to obtain aerogel; immersing theobtained aerogel into a graphene oxide solution, then immersing the aerogel into an ascorbic acid solution, and performing reducing for 1-3h at a temperature of 60-80 DEG C; and finally, immersing theaerogel into an ethanol solution of perfluorooctyltriethoxysilane for 12-24 hours, taking out the aerogel, performing drying, and pasting electrodes at two ends, so as to obtain a super-hydrophobic piezoresistive pressure sensor. The static contact angle of water drops on the surface of the piezoresistive pressure sensor is larger than 150 degrees, a stable electric response signal is shown for external pressure stimulation, the sensor still keeps hydrophobic during compression, and the piezoresistive pressure sensor can be used for human motion detection.

The invention discloses a double-layer polymer-based electric response shape memory material and a preparation method thereof. The material is a double-layer compound prepared by laminating and hot-pressing a thermoplastic polymer elastomer serving as a stationary phase and a crystalline or amorphous polymer material serving as a reversible phase, wherein one-phase material is doped with conductive particles or two-phase materials are simultaneously doped with conductive particles. When voltage stimulation is applied, the temperature of the material rises due to the electrothermal effect generated by the conductive particles, the molecular chain of the reversible phase polymer material is unfrozen, and then electric response shape recovery is achieved. The polymer-based electric shape memory material prepared by the preparation method can realize flexible regulation and control of the shape recovery speed and the shape recovery rate by adjusting the voltage, the types, contents and distribution modes of the conductive particles, the layer thickness ratio of the stationary phase to the reversible phase and the like; the required raw materials are commercially available so that the production cost is low; the preparation method is simple in process, high in production efficiency and capable of realizing continuous batch production.

A jetting device includes an ejection unit arranged to eject a droplet of a liquid. The ejection unit includes a nozzle, a liquid duct connected to the nozzle, and an electro-mechanical transducer arranged to create an acoustic pressure wave in the liquid in the duct. The jetting device further includes a filter arranged to filter the liquid being supplied into the duct and a filter status detection system arranged to detect an obstruction status of the filter by measuring a property of the liquid in the duct. The filter status detection system includes a circuit configured for measuring the electric response of the transducer, for recording changes in the electric response that represent pressure fluctuations induced by the acoustic wave in the form of a time-dependent function, and for judging the obstruction status of the filter on the basis of that function.

The invention discloses a plant leaf resistance distribution measurement method which specifically comprises the following steps: two microelectrode array boards are manufactured, a plant leaf is clamped between the two microelectrode array boards, a voltage is applied on an electrode wire on one of the microelectrode array boards or a current let into the electrode wire on one of the microelectrode array boards, corresponding electric response signals are collected on an electrode wire on the other of the microelectrode array boards, and the collected electric response signals are processed; a resistance value of an point, where the electrode wires of the two microelectrode array boards intersects, of the leaf is obtained; dot matrix distribution of leaf resistance can be further obtained; the invention also discloses application of the above method. According to the plant leaf resistance distribution measurement method and the application thereof, plant leaf resistance distribution can be obtained via microelectrode arrays, tissue and cells can be prevented from damage, accurate measurement can be realized, a plant water depletion degree can be sensitively and accurately determined, and plants can be timely and precisely irrigated in a convenient manner; on-site measurement of leaf resistance distribution, water depletion conditions and a function state can be realized; the method is simple and convenient and is easy to popularize.

The invention discloses a microstructure surface liquid transport device for elastomer with electric field response performance, and further discloses a liquid transportation method. The microstructure surface liquid transport device comprises a substrate and micro-nanometer materials, wherein the substrate is the elastomer with electric response performance and is selected from any one of Dow Corning 184 polydimethylsiloxane, acrylate elastomer and polyurethane elastomer. A V-shaped prism with a V-shaped structure on the surface of the elastomer substrate is obtained through a conformal coating method; the elastomer substrate with the V-shaped structure is asymmetrically stretched by using an electric field; a driving force is generated by using an asymmetric Laplace pressure difference;and continuous and rapid transportation of liquid drops is realized by continuously repeating the process.