52 results about "Electrovibration" patented technology

An image capturing device may be combined with a touch screen to generate a tactile map of an environment. The image capturing device captures an image of the environment which is then processed and used to correlate a point of user contact on a touch screen to a particular tactile sensation. The touch screen may then generate an electric signal (i.e., tactile feedback) corresponding to the tactile sensation which is felt by a user contacting the touch screen. By using the electrical signal as tactile feedback (e.g., electrovibration), the user may determine relative spatial locations of the objects in the environment, the objects' physical characteristics, the distance from the objects to the image capturing device, and the like.

An apparatus that includes a conductive surface and an insulation surface disposed on the conductive surface. The apparatus further includes a controller configured to cause a signal to be coupled to the conductive surface such that a tactile sensation is perceived in a digit that slides on the insulation surface.

An apparatus that includes a conductive surface and an insulation surface disposed on the conductive surface. The apparatus further includes a controller configured to cause a signal to be coupled to the conductive surface such that a tactile sensation is perceived in a digit that slides on the insulation surface.

The measuring system comprises: A measuring transducer of vibration-type, through which medium flows during operation and which produces primary signals corresponding to parameters of the flowing medium; as well as a transmitter electronics electrically coupled with the measuring transducer for activating the measuring transducer and for evaluating primary signals delivered by the measuring transducer. The measuring transducer includes: At least one measuring tube for conveying flowing medium; at least one electro-mechanical, oscillation exciter for exciting and/or maintaining vibrations of the at least one measuring tube; as well as at least a first oscillation sensor for registering vibrations at least of the at least one measuring tube and for producing a first primary signal of the measuring transducer representing vibrations at least of the at least one measuring tube. The transmitter electronics, in turn, delivers at least one driver signal for the exciter mechanism for effecting vibrations of the at least one measuring tube and generates, by means of the first primary signal, as well as with application of a damping, measured value, which represents an excitation power required for maintaining vibrations of the at least one measuring tube, and, respectively, a damping of vibrations of the at least one measuring tube as a result of inner friction in the medium flowing in the measuring transducer, a pressure difference, measured value, which represents a pressure difference occurring between two predetermined reference points in the flowing medium.

A cooking appliance includes a plurality of electrically controlled heating elements operable to elevate a temperature of food items. A user interface includes a touch-sensitive circuit that is operatively-connected to an external surface of the cooking appliance for altering operational settings of the electrically controlled heating elements. An electrovibration feedback circuit is coupled to the external surface that generates a vibratory feedback that is sensible by the user's finger at the external surface in response to adjustments of the operational settings. The electrovibration feedback circuit creates an electrostatic force on the user's finger that simulates friction between the user's finger and the external surface.

The present invention relates to a device and method that generates a tactile presentation, which indicates time on a mobile device. The mobile device may include a touch screen, a processor, and a means for generating electrovibrations. The touch screen may include the functionality to be activated to electrovibrate in at least one portion of the touch screen. The processor may receive electrical signals specifying and displaying a current time on the touch screen. The means for generating electrovibrations generates electrovibrations that vary in response to the time to provide the tactile presentation of the time on the touch screen. The touch screen typically includes a glass plate that is topped with a transparent electrode and insulator. The insulator may be operable to receive contact from a user's finger and in response, generate electrical impulses to provide a tactile presentation as haptic feedback to the user.

Providing a piezoelectric vibrator which is capable of securing the degree of vacuum in a cavity and can be manufactured with high efficiency and to provide a manufacturing method thereof. A piezoelectric vibrator 1 including: a base board 2 and a lid board 3 which are superimposed onto each other so as to form a cavity C therebetween; a piezoelectric vibrating reed 4 which is accommodated in the cavity and bonded to the base board; a gettering material 34 which is formed in the base board to be accommodated in the cavity; a bonding film 35 which is formed on the entire surface of the lid board facing the base board so as to bond both boards to each other at a portion thereof being in contact with the base board, wherein the bonding film is formed of a material which is capable of absorbing surrounding gas by being activated with laser irradiation.

A haptic driving apparatus that may provide a user with electrovibration of certain strength regardless of a variance of a surrounding environment and an electronic device having a haptic function are disclosed. The haptic driving apparatus comprises a haptic electrode driver generating a haptic driving signal to supply the generated haptic driving signal to a haptic electrode through a current monitor and varying the haptic driving signal in accordance with the current supplied to the haptic electrode.

The purpose of the present invention is to provide a piezoelectric vibrating body that is capable of instantaneously generating vibrations for causing what is referred to as a haptic sensation by effectively generating sound waves when a voltage is applied thereto. This piezoelectric vibrating body comprises a piezoelectric laminated body, for which oriented film layers made of a polylactic acid and conductive layers are alternatingly laminated, and grippers for gripping either end of the piezoelectric laminated body, wherein (i) one of conductive layers adjoined across a respective oriented film layer is short-circuited to a negative electrode, and the other to a positive electrode, and the oriented film layers sandwiched by the respective conductive layers are laminated so as to expand/contract in the same direction when a current is applied thereto, (ii) the piezoelectric laminated body has two parallel surfaces that are parallel to the plane direction of the oriented film layers and two end faces A and B that are sandwiched by the parallel surfaces and arranged parallel to each other, and (iii) the gripped ends respectively include end face A and end face B, and the portion of the piezoelectric laminated body between the end faces A and B is stressed by the grippers.

The invention relates to the technical fields of tactile feedback and screen sound production, and in particular to mobile terminal equipment, a tactile feedback and audio control method and a tactile feedback and audio control system so as to solve the technical problems in prior art that an audio module and a tactile feedback module of the mobile terminal equipment are relatively large in size, relatively heavy in mass and relatively high in thickness and the system is relatively complicated. The mobile terminal equipment comprises a display panel, a housing, a middle frame, a circuit module and a piezoelectric vibration module, wherein the housing is located at the back surface of the display panel; the middle frame is internally placed in a space formed by the panel and the housing; the circuit module and the piezoelectric vibration module are located between the middle frame and the housing; and the piezoelectric vibration module is used for tactile feedback and sound production. The light weight and microminiaturization of the mobile terminal equipment are realized, the mass, thickness and size of the mobile terminal equipment can be remarkably reduced and the system is simplified.

Providing a piezoelectric vibrating reed which has low disconnection possibility and ensures reliability for stable operation without requiring strict exposure position accuracy. A piezoelectric vibrating reed 1 including: a piezoelectric plate which includes vibrating arms 3 and 4, a base portion 5 to which base ends of vibrating arms are integrally fixed, and groove portions 6 which are formed on principal surfaces of vibrating arms; and excitation electrodes 10 and 11 to which vibrating arms are vibrate, wherein the excitation electrodes each include: a principal electrode portion 20, a side electrode portion 21 and a connection electrode portion 22, wherein the principal electrode portions are formed such that a horizontal width W1 on the base end sides of the vibrating arms is smaller than a horizontal width W2 in other portions so that a vacant area S is secured on a portion of the principal surface of each of the vibrating arms in the vicinity of a fork portion 15, and wherein the connection electrode portion is formed to have a large width on the principal surface of each of the vibrating arms so as to come close to an opening end side of each of the groove portions by occupying the vacant area.

To provide a method for manufacturing a piezoelectric resonator which can conduct frequency matching with high reliability when performing rough adjustment of the frequency by adjusting the shape of a piezoelectric oscillating piece before forming an electrode film, and thereby it becomes possible to avoid reduction of the yield. Etching for forming the shape of a piezoelectric oscillating piece, and etching for forming grooves are conducted simultaneously, and after forming the grooves, the shape formation of the piezoelectric oscillating piece is started again from the same depth as the groove in a state of covering the groove with a metal film, and after the shape formation, matching of frequency is conducted by etching the side surface of the piezoelectric oscillating piece in succession. By composing such a structure, it is possible to conduct rough adjustment of frequency at a low etching rate so that the frequency matching can be performed with no due difficulty and with high accuracy.

A vibration apparatus includes a vibrating body that has a tubular shape and includes first and second opening end portions, an outside surface, and an inside surface, a light transmissive body connected to the second opening end portion of the vibrating body, and a piezoelectric vibrator provided in the vibrating body. The vibrating body includes a flange portion extending from the outside surface of the vibrating body toward an outside. The vibration apparatus further includes a driving circuit that vibrates a connection body of the light transmissive body and the vibrating body in a vibration mode of light transmissive body vibration or a vibration mode of flange portion vibration and that alternately switches between the vibration mode of the light transmissive body vibration and the vibration mode of the flange portion vibration.

Provided is a piezoelectric vibrating device including a case provided with a certain space therein, a piezoelectric vibrating member provided in the case and vibrating according to an applied voltage, a weight member provided in the case and connected to a part of the piezoelectric vibrating member in a vibration direction of the piezoelectric vibrating member, and a limitation member for limiting movement of the weight member.

The invention relates to a touch feedback device and an intelligent terminal. The touch feedback device comprises a touch control part, a piezoelectric vibrator, a pressure detector and a processor. The touch control part comprises a frame and a touch control screen connected with the frame. The piezoelectric vibrator is connected with the touch part and used for driving the touch screen to vibrate; the pressure detector is connected with the touch control part and used for detecting touch control pressure applied to the touch control screen; the processor is connected with the piezoelectric vibrator and the pressure detector and used for obtaining the touch pressure detected by the pressure detector and driving the piezoelectric vibrator to drive the touch screen to vibrate to a corresponding degree according to the detected touch pressure. The processor can drive the piezoelectric vibrator to drive the touch screen to generate vibration of different degrees (for example, the larger the touch pressure value is, the larger the vibration degree is) according to the detected touch pressures of different magnitudes, so that the experience feeling of a user can be improved, and diversified use requirements of the user are met.

The invention provides a piezoelectric sounding body. A piezoelectric sounding body (10) is provided with: a piezoelectric vibrating piece (20); a case (50) in which the piezoelectric vibrating piece (20) is housed; a cover-like substrate (40) that is attached to the case (50) and forms, together with the case (50), a housing space for the piezoelectric vibrating piece (20); and conductive terminals (60, 70) electrically connected to the piezoelectric vibrating piece (20). The conductive terminals (60, 70) have tip portions (62, 72) that elastically press the piezoelectric vibrating piece (20) toward the housing side, and terminal bodies (68, 78) that are connected to the tip portions (62, 72). At least a part of the terminal bodies (68, 78) is embedded in a cap-shaped substrate (40) and fixed. According to the invention, the piezoelectric vibrating piece in the piezoelectric sounding body can be fully vibrated.