An operation input device includes an operation input unit that is configured to receive a tracing operation performed in a one-dimensional direction. The operation input unit includes a plurality of mechanical switches that are arranged side by side in an operation direction and each include an operation surface subjected to the tracing operation, the operation surface defining a curved surface along the operation direction.

An input device includes a structural frame, a touch pad, a piezoelectric sheet fixed on the touch pad, and a controller electrically connected to the touch pad and the piezoelectric sheet. The touch pad has a first side, a second side opposite to the first side, and a touch-sensitive surface that has a button area located at the second side. The touch pad can be elastically deflected to move the second side relative to the structural frame. The piezoelectric sheet generates a voltage when the touch pad is elastically deflected. When determining that a press is performed on the button area and the voltage is larger than or equal to a corresponding predetermined value, the controller sends out a trigger signal. An electronic apparatus with the input device includes a display screen and a processor. The processor receives the trigger signal to control the display screen to display images.

An input device includes a structural frame, a touch pad, a piezoelectric sheet fixed on the touch pad, and a controller electrically connected to the touch pad and the piezoelectric sheet. The touch pad has a first side, a second side opposite to the first side, and a touch-sensitive surface that has a button area located at the second side. The touch pad can be elastically deflected to move the second side relative to the structural frame. The piezoelectric sheet generates a voltage when the touch pad is elastically deflected. When determining that a press is performed on the button area and the voltage is larger than or equal to a corresponding predetermined value, the controller sends out a trigger signal. An electronic apparatus with the input device includes a display screen and a processor. The processor receives the trigger signal to control the display screen to display images.

A starting method for inputting Morse code and a portable electronic device thereof are provided. The starting method for inputting Morse code is performed in the portable electronic device that includes a first physical button, a second physical button, a sensing circuit and a processing circuit. The starting method for inputting Morse code includes steps of: when the portable electronic device is switched to a sleep mode or a shutdown mode, enabling the sensing circuit to sense whether the first physical button and the second physical button are simultaneously pressed by a user; and when the first physical button and the second physical button are simultaneously pressed by the user, enabling the processing circuit to generate a longer mark of Morse code or a shorter mark of Morse code according to the duration for which the user presses the first physical button or the second physical button.

A starting method for inputting Morse code and a portable electronic device thereof are provided. The starting method for inputting Morse code is performed in the portable electronic device that includes a first physical button, a second physical button, a sensing circuit and a processing circuit. The starting method for inputting Morse code includes steps of: when the portable electronic device is switched to a sleep mode or a shutdown mode, enabling the sensing circuit to sense whether the first physical button and the second physical button are simultaneously pressed by a user; and when the first physical button and the second physical button are simultaneously pressed by the user, enabling the processing circuit to generate a longer mark of Morse code or a shorter mark of Morse code according to the duration for which the user presses the first physical button or the second physical button.

An information handling system keyboard includes a backlight that illuminates keys by transmitting light from a light source through a light guide under the keys and reflects the light towards the keys with a reflector disposed under the light guide. Varied thickness of one or more of the light source, light guide and reflector at an intersection of the light source, light guide and reflector improve the efficiency of light transmission to the keys, thus providing for a thinner light guide and/or reduced illumination to have a given key illumination.

An information handling system keyboard includes a backlight that illuminates keys by transmitting light from a light source through a light guide under the keys and reflects the light towards the keys with a reflector disposed under the light guide. Varied thickness of one or more of the light source, light guide and reflector at an intersection of the light source, light guide and reflector improve the efficiency of light transmission to the keys, thus providing for a thinner light guide and/or reduced illumination to have a given key illumination.

An information handling system keyboard has plural key caps coupled to a frame with a vertical travel having a raised position defined by engagement between a stop of the frame and a key cap extension from the key cap. Larger key caps, such as a space bar, shift and enter key cap, are stabilized by including a balancing bar that maintains the key cap level when depressed and released. Acoustic noise associated with key cap movement and balancing bar rattle is reduced by stabilizing the balancing bar with one or more magnets and/or a shaped cushion to reduce balancing bar rattle.

A keyboard device includes a base plate with a base plate with a connecting bracket, a wing-type connecting element and a keycap. A first connecting shaft of the wing-type connecting element is inserted into the connecting bracket, so that the wing-type connecting element is connected with the base plate. While the keycap is depressed, the first connecting shaft is inserted into a first receiving space of the connecting shaft and used as a swinging fulcrum. Since the vertical movement of the wing-type connecting element is restricted by the first receiving space, the swinging range of the wing-type connecting element is reduced. Consequently, the keyboard device of the present invention is capable of improving the depressing stability of the keycap.

A keyboard device includes a base plate with a base plate with a connecting bracket, a wing-type connecting element and a keycap. A first connecting shaft of the wing-type connecting element is inserted into the connecting bracket, so that the wing-type connecting element is connected with the base plate. While the keycap is depressed, the first connecting shaft is inserted into a first receiving space of the connecting shaft and used as a swinging fulcrum. Since the vertical movement of the wing-type connecting element is restricted by the first receiving space, the swinging range of the wing-type connecting element is reduced. Consequently, the keyboard device of the present invention is capable of improving the depressing stability of the keycap.