摘要:
The process and the device for measuring the displacement of a web within a multi-color rotary printing press by means of a mark simultaneously printed with each color in an area free of any printing characterized by the mark passing beneath the photodetector arrangements for generating a signal. The method and the device are further characterized by the fact that the pair of photodetectors are arranged side-by-side along a crosswise line with the edges of the field for each detector arrangement being positioned above the web at the expected position for the passage of the center of the crosswise symmetrical mark and the crosswise displacement of the web is determined by the difference between the intensity variations of the signals created by each of the two photodetectors when the mark passes therethrough.
摘要:
A key module for a keyboard includes a key having a guiding plunger, and a key housing having a set of walls with an opening formed by the set of walls. The opening formed by the set of walls is configured to receive the guiding plunger. The set of walls includes at least eight guiding surfaces configured to contact the guiding plunger. The guiding plunger is configured to contact the eight guiding surfaces as the guiding plunger moves up and down in the opening.
摘要:
Embodiments of the present invention are directed to an attachment apparatus for conveniently, securely, and releasably attaching a handheld device such as a handheld computer to a keyboard or other accessories. In some embodiments, the attachment apparatus is configured to be flexible or adjustable to accommodate differently sized handheld devices. In addition, an automatic switch on feature is implemented in some embodiments which allows the handheld device to be automatically switched on or off by manipulating the position of the attachment apparatus. In accordance with an aspect of the present invention, an apparatus for attaching a handheld device to a second device comprises an attachment device having a connector configured to be electrically connected to the handheld device. An adjustable mechanism is configured to adjustably connect the handheld device to the second device to move the handheld device relative to the second device between a first position and a second position. The attachment device includes a switch which is automatically activated to switch on the handheld device in the second position.
摘要:
Embodiments of the present invention are directed to a computer keyboard having user-manipulable components for multi-media applications and additional computer interface and control purposes that are desirably designed for ease of manufacturing and cost effectiveness. A preformed roller module has a small top cover and base forming an enclosure to hold the entire roller mechanism, including the electronic components. The roller module is then attached to the keyboard. A volume control dial is provided for audio volume control. The dial desirably is also preformed and then attached to the keyboard. Keyboard feet may be provided on the rear edge of the keyboard for tilting the keyboard without taking up space at the bottom of the keyboard, so that the keyboard height profile can be kept low. An opaque keyboard frame may be placed over the key mechanisms of the keys to hide them from sight, and a translucent top case may be placed over the opaque keyboard frame. The keys protrude through openings of the opaque keyboard frame and the translucent top case.
摘要:
A full-size keyboard with an integrated laptop stand. In one embodiment, the laptop stand is part of a cover for a portable keyboard, with the cover unfolding and including a pop-up stand for supporting a portable computer. The stand is thus connected to the keyboard rather than being a separate article. The cover includes electronics, such as a USB hub and ports, an MP3 player docking station, speakers, etc. A flexible hinge connects the keyboard and cover, with imbedded electrical flex connectors. A presence sensor, such as a PIR sensor, shuts off battery use by these electronics when the user is not around.
摘要:
The present invention uniquely separates the number pad from a keyboard providing a separate, wireless device. This separate wireless device with the number pad includes a display and has multiple modes of operation.
摘要:
An optical feedback mechanism corresponding to a variation in input by a user's digit on an input element. The variation in input can be movement by the user's finger, or a change in the amount of pressure or force applied to a button. In one embodiment, the optical feedback is a linear light array adjacent a solid-state scroll/zoom sensor, with the light corresponding to the finger position. Alternately, a solid state button could provide feedback corresponding to the amount of pressure in the form of a change in intensity, color or blinking. In one embodiment, the input signal from an input element alternates between a scroll, zoom and/or other functions depending on the current application.
摘要:
Embodiments of the present invention are directed to a computer keyboard having user-manipulable components for multi-media applications and additional computer interface and control purposes that are desirably designed for ease of manufacturing and cost effectiveness. A preformed roller module has a small top cover and base forming an enclosure to hold the entire roller mechanism, including the electronic components. The roller module is then attached to the keyboard. A volume control dial is provided for audio volume control. The dial desirably is also preformed and then attached to the keyboard. Keyboard feet may be provided on the rear edge of the keyboard for tilting the keyboard without taking up space at the bottom of the keyboard, so that the keyboard height profile can be kept low. An opaque keyboard frame may be placed over the key mechanisms of the keys to hide them from sight, and a translucent top case may be placed over the opaque keyboard frame. The keys protrude through openings of the opaque keyboard frame and the translucent top case.
摘要:
A key module for a keyboard includes a key having a guiding plunger, and a key housing having a set of walls with an opening formed by the set of walls. The opening formed by the set of walls is configured to receive the guiding plunger. The set of walls includes at least eight guiding surfaces configured to contact the guiding plunger. The guiding plunger is configured to contact the eight guiding surfaces as the guiding plunger moves up and down in the opening.