268 results about "Capacitive effect" patented technology

In one aspect, the present invention relates to a pressure sensing/force generating device comprising a non-planar substrate, a printed pressure sensitive element comprising (a) a piezoelectric material containing ink composition capable of producing a piezoelectric effect/piezoresistive effect and/or (b) a dielectric material containing ink composition capable of producing a capacitive effect. It also includes a first printed electrode comprising a conductive ink composition, and a second printed electrode comprising a conductive ink composition. The first and second electrodes are in electrical contact with the printed pressure sensitive element. The first and second printed electrodes and the printed pressure sensitive element collectively form a pressure sensitive junction, which is coupled to the non-planar substrate. The present invention further relates to medical devices comprising the pressure sensing/force generating device and methods of making such devices.

A pen or stylus for use with a finger activated computer touchpad uses capacitively coupled voltage signals to simulate the capacitive effect of a finger on the touchpad. In addition, the pen has buttons that can be utilized to capacitively couple control signals to the touchpad that are interpreted by application software as specific user-defined inputs. The pen has a conductive tip that is placed into contact with the touchpad. By biasing the touchpad electrodes with a properly timed voltage signal, the pen alters the charging time of the electrodes in the touchpad. This alteration in charging time is interpreted by the touchpad as a change in capacitance due to the presence of a user's finger. Thus, the pen can be used with touchpads that were designed to only detect finger movements.

Integrated high frequency balanced-to-unbalanced transformers suitable for operation in high frequencies, such as radio frequencies. Embodiments disclosed give consideration to issues related to the layout of the primary and secondary inductors for the minimization of capacitive effects between layers while using a minimal number of metal layers. Two solutions are provided, one having embodiments with a symmetrical primary inductor in a 4-metal layer implementation and one having embodiments with a non-symmetrical primary inductor in a 3-metal layer implementation.

A protective arrangement for preventing parts of the body from being trapped between at least two mutually relatively moveable parts including at least one strip which is associated with at least one part. There are provided in the strip at least two mutually spaced conductive elements extending in the longitudinal direction of the strip. An electronic sensor system serves to produce an output signal for a capacitance that is adapted to vary as a result of external influences. Due to the fact that at least one first conductive element sends out a signal which is received by at least one second conductive element due to the capacitive effect of the first conductive element and that the second conductive element is at substantially the same electrical potential as the first conductive element and likewise sends out the received signal, there is provided a capacitive crush protection arrangement which does not react to splashes of water or the formation of dew or frost.

A gate isolation structure of a semiconductor device and method of making the same provides a trench in a silicon substrate, wherein a dielectric layer is formed on sidewalls and bottom of the trench, the dielectric layer having a first thickness on the sidewalls and a second thickness at the bottom that is greater than the first thickness. The thicker dielectric layer at the bottom substantially reduces gate charge to reduce the Miller Capacitance effect, thereby increasing the efficiency of the semiconductor device and prolonging its life.

A dressing for promoting healing and pain relief of the body of a living organism having a pathologic condition has at least one layer of conductive material having a resistance no greater than 1000 Ω/cm². When placed proximate a portion of the body of the living organism suffering from the pathologic condition, the dressing alters the electrodynamic processes occurring in conjunction with said pathologic condition to promote healing and pain relief in the living organism. When used as a wound dressing, the conductive material is placed in contact with tissue around the periphery of the wound and with the wound, lowering the electrical potential and resistance of the wound and increasing the wound current. In an exemplary embodiment, the conductive material is a multi-ply nylon fabric plated with silver by an autocatalytic electroless plating process and with the plies in electrical continuity. The dressing provides an antimicrobial and analgesic effect. The dressing may be provided for numerous applications and may include other layers such as an absorbent layer, a semi-permeable layer and additional layer of conductor material. Multilaminate embodiments of the present invention exhibit conductive material concentration gradients and, potentially, a capacitive effect when sequential conductor layers are insulated by intervening layers.

A miniature multi-frequency antenna, comprising at least one dielectric substrate, at least one signal electrode and at least one ground electrode. The signal electrode and the ground electrode are disposed on a substrate. The signal electrode contains at least two branches and at least one branch is partially overlapped with the ground electrode. Each interlayer region between the partially overlapped electrodes forms a specific capacitance. By utilizing this interlayer capacitive effect, the resonant frequency of lower frequency band is achieved while the size of the antenna is effectively reduced. For obtaining the resonant frequency of the high frequency bands, the design concept of PIFA is applied on other branches of the signal electrode. A miniature antenna thus obtained is capable of transmitting/receiving multi-frequency signals having the benefits of easily adjusting impedance and resonant frequency.

A capacitor and capacitor-like device or any other device showing capacitive effects, including FETs, transmission lines, piezoelectric and ferroelectric devices, etc., with at least two electrodes, of which at least one electrode consists of or comprises a material or is generated as electron system, whose absolute value of the electronic charging energy as defined by the charging-induced change of E_kin+E_exc+E_corr exceeds 10% of the charging-induced change of the Coulomb field energy of the capacitor according to E=E_coul+E_kin+E_exc+E_corr. Therein, E is the energy of a capacitor and E_coul=Q²/2 C_coul=Q²d/(2ε₀ ε_x A), A is the area of the capacitor electrodes, d is the distance and ε₀ε_x the dielectric constant between them. E_corr describes the correlation energy, E_kin the electronic kinetic energy and E_exc the exchange energy of the electrode material. Particularly in miniaturized devices, E_coul is becoming so small that, by using certain materials or material combinations for the capacitor, E_kin, E_exc, and/or E_corr provide significant contributions to E. Preferred are materials with strongly correlated electron systems such as perovskites like La_1-xSr_xTiO₃, YBa₂Cu₃O_7-d, vanadates such as (V_1-xA_x)₂O₃ with A=Cr, Ti, materials with free electron gases of typically low densities such as Cs, Bi or Rb, or of materials the carrier density of which is reduced by diluting these materials in other materials with smaller carrier densities, metals like Fe, or Ni, materials with van-Hove singularities in the electronic density of states such as graphite or Bechgaard salts or even or 2D-electron gases generated by graphene or by heterostructures, such as the electron gases generated at LaAlO₃/SrTiO₃ or ZnO/(Mg_xZn_1-x)O multilayers and more.

A semiconductor memory device having a multiport memory includes a plurality of memory cells MC arranged in columns and rows, a plurality of first word lines WLA0-WLAn connected to a first port 13a, and a plurality of second word lines WLB0-WLBn connected to a second port 13b. Each of a plurality of first word lines WLA0-WLAn and each of a plurality of second word lines WLB0-WLBn are arranged alternately in a planar layout. A semiconductor memory device is thus obtained that allows a coupling noise between interconnections to be reduced without an increase in memory cell area.

A humidity sensor is provided having humidity levels approaching 100% relative humidity can be measured, as well as condensation measurements which appear as RH values “above 100%”. The humidity sensor is a capacitance based sensor. The capacitor(s) of the sensor is dimensioned so that substantial electric fields of the capacitor extend to the sensor/ambient air interface so that the conditions at the ambient side of the interface provide data for the sensor. In particular, the capacitance effects of moisture formation on the ambient side of the sensor/ambient air interface are utilized as part of the measurements so that relative humidity levels below and above 100% can be detected. The capacitor(s) of the sensor is dimensioned so that substantial electric fields of the capacitor extend to the air interface so that the conditions at ambient side of the interface provide data for the sensor.

The invention discloses a multimode broadband antenna module and a wireless terminal, which belong to the field of wireless communication. The multimode broadband antenna module not only has a large-range work broadband, but also has quite a small size. The multimode broadband antenna module comprises a printing circuit board and an antenna body. The antenna body comprises a first radiation body and a second radiation body, which are electrically connected to the printing circuit board. The first radiation body comprises a connecting part, a low-frequency part and a high-frequency part. The second radiation body comprises a grounding part, a low-frequency part and a high-frequency part. A first preset distance is disposed between the low-frequency part of the first radiation body and the low-frequency part of the second radiation body. A second preset distance is disposed between the high-frequency part of the first radiation body and the high-frequency part of the second radiation body. Accordingly, a coupling capacitance effect can be formed between the first radiation body and the second radiation body.

A portable information handling system multi-purposes a near field communication (NFC) antenna to detect object proximity of objects by interfacing a capacitive proximity processor with the NFC antenna and isolating the capacitive effects at the NFC antenna with a capacitive matching circuit disposed between the NFC antenna and an NFC transceiver. Comparison of the objects detected proximate the NFC antenna and proximate a conductive antenna provides a distinction of different types of objects, such as human forms versus a desktop.