Abstract: A system for docking an electronic test head with a handling apparatus is provided. The system includes an assembly for at least partially aligning and subsequently bringing together the electronic test head and the handling apparatus. The system also includes a power driven actuator for providing only partially powered assistance in bringing together the electronic test head and the handling apparatus.

Abstract: A load, such as an electronic test head, is supported. A force sensor detects a force received from the load, the force resulting from the load being imbalanced such that a torque is created about a rotational axis of the load. A source of force provides a counter force relative to the load in response to the force detected by the force sensor. A method of docking an electronic test head held in a test head manipulator to an electronic device handler is also provided. The method of docking includes measuring a magnitude of an imbalance force along or about at least one of a plurality of motion axes of the test head manipulator; and providing a counter force to the imbalance force.

Abstract: A system for docking an electronic test head with a handling apparatus is provided. The system includes an assembly for at least partially aligning and subsequently bringing together the electronic test head and the handling apparatus. The system also includes a power driven actuator for providing only partially powered assistance in bringing together the electronic test head and the handling apparatus.

Abstract: A load, such as an electronic test head, is supported. A force sensor detects a force received from the load, the force resulting from the load being imbalanced such that a torque is created about a rotational axis of the load. A source of force provides a counter force relative to the load in response to the force detected by the force sensor. A method of docking an electronic test head held in a test head manipulator to an electronic device handler is also provided. The method of docking includes measuring a magnitude of an imbalance force along or about at least one of a plruality of motion axes of the test head manipulator; and providing a counter force to the imbalance force.

Abstract: A system for docking an electronic test head with a handling apparatus is provided. The system includes an assembly for at least partially aligning and subsequently bringing together the electronic test head and the handling apparatus. The system also includes a power driven actuator for providing only partially powered assistance in bringing together the electronic test head and the handling apparatus.

Abstract: DAXI information, recorded in the vertical interval of a video disc signal, is augmented by program data encoded in the DAXI format but inverted prior to recording and interleaved between a blank video line and a line containing a masking signal to form a triad of lines. In a video disc player the data is recovered by comb filtering the video signal. A decoder processes the DAXI signal normally for controlling operation of the player but decodes the triad of lines as a data error when the DAXI signal is anticipated or most likely to occur. Program data in each triad is recovered when the DAXI data is not anticipated or least likely to occur by inverting the program data applied to the decoder thereby eliminating the need for a separate decoder in the player for decoding the program data and providing output data for use by an external computer in an interactive application of the video disc player.

Abstract: A touchbar or touchplate is supported on its edges by force-sensitive switches, such as push-button switches, each having a plurality of contacts opened or closed at different pressure thresholds. The pattern of which contact conditions of conduction or non-conduction is converted to logic ONES's and ZERO's and decoded to obtain indications to which a plurality of touchpoint regions on the touchbar or touchplate a user applies force.

Abstract: A very inexpensive computer input device for music information includes a piano-type keyboard unit adapted to be fastened on to a standard alpha-numeric computer keyboard so that manual "playing" of music on the piano keyboard results in actuation of alpha-numeric keys and the recording of the music in the computer memory, for later playback in audible form, or print-out in sheet music form.