Apple Inc.

Anhui Eyevolution Technology Co., Ltd.

Wenhao Wang

Ming Gao

Chia Chi Wu

Michael Vosgueritchian

Vyom Sharma

Nan Chen

Yuanzhen Fan

Xiaolin Zhang

Zhengyu Li

Dongdong Yang

Kaifang Wang

Jiamao Li

Haixiang Hu

A keyboard of the present disclosure has a keyboard housing with a base plate defining a trackpad opening. The keyboard can also include a trackpad assembly disposed within the trackpad opening, the trackpad assembly including: a touch input plate configured to receive a user touch input and positioned above the base plate; and a flexure positioned below the base plate. In some examples the flexure includes: a first attachment portion attached to the touch input plate; a second attachment portion attached to the base plate; and at least one flexible portion connecting the first attachment portion to the second attachment portion and biasing the first attachment portion upward relative to the second attachment portion.

Input device

An electronic device such as a voice-controlled speaker may have an array of strain gauges and light-emitting diodes. The light-emitting diodes may be configured to display dynamically adjustable button icons overlapping the strain gauges. Force measurements from the strain gauges may be used to adjust speaker output and other device operations.

Electronic devices with strain gauges and light sources

An electronic device has a keyboard with an internal membrane. The membrane has a set of strain gauges configured to respond to a key press, such as when a collapsible dome collapses into contact with the membrane. The strain gauges are connected in a half Wheatstone bridge configuration and are positioned on the membrane in order to limit effects of temperature and subtle flexure of the membrane. The strain gauges are also configured to magnify detection of a resistance differential when a keycap is pressed with sufficient force.

Strain sensing key membrane

A stereo calibration method for a movable vision system. The movable vision system involved in the method comprises at least two photography components, at least one calculation component, and at least one control component. The method comprises: placing a calibration template in front of photography components; rotating the photography components by degrees of freedom of motion; obtaining one or more groups of images including calibration template features, and obtaining corresponding position information at the degrees of freedom of motion when the images are obtained; obtaining, by means of calculation, a calibration result of the photography components and the degrees of freedom of motion, i.e., a rotation matrix and a translation matrix of the rotation axis at the degrees of freedom of motion with respect to the photography components; and then obtaining in real time a stereo calibration result by combining the obtained calibration result and the position information at the degrees of freedom of motion in the vision system. The method implements stereo calibration of the photography components in a movable multiocular system in a motion state, has a good calculation real-time property, eliminates the error problem caused by machining or assembly, and has a broad application prospect.

Stereo calibration method for movable vision system

Growing community of inventors

Shanghai, China

Wenhao Wang