Huawei Technologies Co., Limited

Maxim Integrated Products, Inc.

Tao Huang

Fei Liu

Jun Xu

Shiau Chwun George Pwu

Chen-Hsien Hung

The disclosure relates to technology for haptic stimulation. A haptic interface device comprises an array comprising haptic stimulation elements configured to generate a stimulation pattern. The haptic interface device comprises a controller configured to continually propagate the stimulation pattern on a user's skin, including repeatedly eliminate a portion of a first end of the stimulation pattern and replace the eliminated portion with a new portion at a second end of the stimulation pattern.

Spatial-temporal haptic stimulation systems and methods

A start-up control for a transmitter (TX) output driver is implemented to prevent the stick state problem when the TX driver is not toggling. TX output driver is set in a high impedance (HZ) mode when data zero is delivered from the digital base band (DBB) and set in an enhanced mode to deliver a stronger signal when data one is delivered from the DBB. The transmitter comprises a dual-loop PLL to synchronize the TX output pulse and the carrier. The dual-loop PLL is composed of a relaxation oscillator, a 1Loop, and a 2Loop. The 1loop is a voltage-controlled oscillator comprising the relaxation oscillator and an operational transconductance amplifier. The 2loop is a loop comprising a phase frequency detector, a charge pump, a loop filter and the VCO of the 1loop.

Growing community of inventors

Plano, TX, United States of America

Tao Huang