US Patent 11994915 Retention mechanisms for coupled devices

A case can provide a mechanism for securely retaining a stylus with a host device while the stylus is not in use. Such a mechanism can maintain the alignment of the stylus with the host device for attachment, power transfer, and/or communication. The mechanism can further protect the stylus from impact or other external influences. The same mechanism can transition to a lower profile while not retaining the stylus (e.g., while the stylus is in use as an input device for the host device). Such a mechanism can selectably be placed into a configuration that substantially conceals the mechanism, such that it can temporarily appear to be a case or portion of the host device that does not necessarily have a dedicated receptacle for retaining the stylus.