摘要:
The present invention is directed to systems and methods of distinguishing acoustic noise from valid plate contacts in vibration sensitive devices such as vibration sensing touch panels. The energy content of the detected vibration spectrum can be analyzed for features characteristic of noise, for example a higher relative contribution from high frequencies due in part to preferential coupling of above coincidence frequencies over below coincidence frequencies.
摘要:
A touch sensing device includes a plurality of sensors and an emitting transducer coupled to a touch panel. The transducer induces bending waves in the touch panel. The sensors sense bending waves in the touch panel and generate a bending wave signal responsive to the sensed bending waves. A controller identifies an untouched condition signal responsive to the induced bending waves. The controller compares the untouched condition signal to the bending wave signal, and detects a touch on the touch panel based on the comparison.
摘要:
A contact sensitive device includes a member capable of supporting bending waves and a plurality of sensors mounted on the member for measuring bending wave vibration in the member. The sensors measure the bending wave signals and by calculating a phase angle for each measured bending wave signal and a phase difference between the phase angles of at least two pairs of sensors so that at least two phase differences are calculated, the location of the contact can be determined.
摘要:
The present invention provides a touch sensitive input device that uses vibrations due to touch impacts and/or frictional movement of a touch implement across a surface to determine information related to the touch, such as touch position. The present invention also provides for detecting lift-off events in such vibration sensing input devices. Lift-off detection can be accomplished by monitoring for a signal that indicates a sustained touch on the touch plate, and correlating a change in such a signal with a lift-off event. Signals indicating a sustained touch can include low frequency rumbles coupled into the touch plate via the touch implement, touch plate bending under the force of a sustained touch, and touch plate displacement under the force of a sustained touch.
摘要:
A touch sensitive apparatus includes a touch plate to which several pickup sensors and at least one excitation transducer are coupled. Each of the sensors is configured to sense bending waves in the touch plate, and the excitation transducer is configured to induce bending waves in the touch plate. The apparatus may further include active buffer circuits, wherein each of the active buffer circuits is coupled to one of the sensors. A controller is coupled to the sensors via the active buffer circuits and to the excitation transducer via a non-actively buffered connection. The controller is configured to compute a location of a contact on the touch plate responsive to sense signals received from the sensors. The apparatus may be used to perform a variety of calibrations, including touch plate and sensor calibrations. Changes in touch sensing apparatus calibration and performance may be detected and tracked over time.
摘要:
A touch sensing device includes a plurality of sensors and an emitting transducer coupled to a touch panel. The transducer induces bending waves in the touch panel. The sensors sense bending waves in the touch panel and generate a bending wave signal responsive to the sensed bending waves. A controller identifies an untouched condition signal responsive to the induced bending waves. The controller compares the untouched condition signal to the bending wave signal, and detects a touch on the touch panel based on the comparison.
摘要:
A touch sensitive apparatus includes a touch plate and a number of sensors coupled to the touch plate. Each of the sensors is configured to sense bending waves in the touch plate and, in response to a touch to the touch plate, generate sensor signals. A controller is coupled to the sensors. The controller corrects for dispersion in the sensor signals and determines a location of the touch using the dispersion corrected signals. The controller performs impulse reconstruction, by which impulses representative of impulses generated by the touch to the touch sensitive device are produced. Using the reconstructed impulses, the controller confirms the location of the touch.
摘要:
Systems for storing beverages are disclosed, which include a container for storing, transporting and dispensing a beverage, e.g. beer. In some implementations the container includes a pressure-tight lid closure system including wire bails.
摘要:
A privacy management system is disclosed for when a calling party has a private telephone number. Privacy screening services allow a subscriber to manage and monitor incoming telephone calls, such that unwanted calls are not terminated to the subscriber. When a calling party calls the subscriber to this privacy screening service, the privacy management system manages the call according to whether the calling party number is known and public, known and private, or unknown. If the calling party number is known and public, the call is routed to the subscriber. If, however, the calling party is known and private, an announcement is played to the calling party, asking the calling party for permission to override his or her privacy. If the calling party is unknown, the calling party is asked to record his/her name.
摘要:
Systems for storing beverages are disclosed, which include a container for storing, transporting and dispensing a beverage, e.g. beer. In some implementations the container includes a pressure-tight lid closure system including wire bails.