Combining electro-permanent magnets and magnetorheological fluids to modify operation of input devices

The invention discloses a combination of electro-permanent magnets and magnetorheological fluids to modify operation of an input device. Aspects of the invention include a computer peripheral device comprising: an input element that operates based on a performance characteristic; an electro-permanent magnet (EPM) assembly including a permanent magnet configured to generate a magnetic field and a magnetization assembly configured to set an intensity of the magnetic field generated by the permanent magnet; and a magnetorheological (MR) material coupled to the input element. The MR material has a viscosity that varies based on the magnetic field and affects performance characteristics of the input element. 本发明公开了组合电永磁体和磁流变流体来修改输入装置的操作。本发明的方面包括计算机外围装置，该计算机外围装置包括：基于性能特性操作的输入元件；电永磁体(EPM)组件，其包括被配置成产生磁场的永磁体以及被配置成设置由永磁体产生的磁场的强度的磁化组件；以及耦接至输入元件的磁流变(MR)材料。MR材料具有基于磁场改变并且影响输入元件的性能特性的粘度。