Impedance shaping for haptic interfaces on wearable devices

A wearable device comprising:

• a wearable structure to be worn on a portion of a user's body;
• and
• a plurality of haptic assemblies, wherein each haptic assembly is coupled to the wearable structure and comprises:
• a brace that includes a first portion and a second portion;
• a vibrotactile actuator, coupled to the first portion of the respective brace, configured to generate a haptic stimulation to a user;
• and
• a linear actuator, coupled to the second portion of the respective brace, configured to:
• obtain a signal generated based on information about the user's body at a target location of the user;
• and
• adjust a tension of the respective brace according to the signal, thereby generating localized vibrations to the user.

An artificial-reality device comprising:

• a head-mounted display that presents content to a user, the head-mounted display including an electronic display;
• a computing device that is (i) communicatively coupled to the head-mounted display and (ii) configured to generate and transmit one or more signals that correspond to content displayed on the electronic display;
• and
• a wearable device that is (i) communicatively coupled to the computing device and (ii) includes:
• a wearable structure to be worn on a portion of the user's body;
• and
• a plurality of haptic assemblies, each haptic assembly coupled to the wearable structure, and each haptic assembly including:
• a respective brace that includes a first portion and a second portion;
• a respective vibrotactile actuator, coupled to the first portion of the respective brace, configured to generate a haptic stimulation to a user;
• and
• a respective linear actuator, coupled to the second portion of the respective brace, configured to:
• receive a respective signal, from the computing device, generated based on information about the user's body at a target location of the user;
• and
• adjust a tension of the respective brace according to the signal, thereby generating localized vibrations to the user.