Abstract: A golf green topographic overlay and target assist apparatus assists players develop their short game by demarking the fall line of a green on the low side of a target area or cup. The overlay includes a sight area which is placed over top of a target area or cup. The player shoots upon the green proper, the ball ending upon the overlay. If ending in the sight area, then the player has holed the shot. If the shot ends upon the overlay, but outside of the sight area, then the player has misjudged the break but has used the correct amount of force to properly hole the shot had the break been properly judged. The overlay is useful for practicing on actual greens where a player is apt to play.

Abstract: Various structures chip packages are disclosed including a magnetoresistive random access memory (“MRAM”) device and a magnetic shield structure. The magnetic shield structure may be made from material having either ferromagnetic or diamagnetic material and may be shaped and incorporated into the chip package to divert stray magnetic fields away from the MRAM device.

Abstract: A protective housing for a circuit board mounted on an end of a cell is described. The protective housing includes a cut-out in its sidewall and a retaining wall centered in the cut-out. This provides a pair of gaps, one on each side of the retaining wall between the cut-out. These gaps are size so that lead wires extending from the circuit board are captured therein in a tight-fitting relationship. Consequently, the lengths of the leads extending from the protective housing of the cell to a quick disconnect at the distal end of the leads is precisely controlled. If desired, there can be more than one retaining wall providing a plurality of gaps for capturing a plurality of lead wires therein.

Abstract: Various structures chip packages are disclosed including a magnetoresistive random access memory (“MRAM”) device and a magnetic shield structure. The magnetic shield structure may be made from material having either ferromagnetic or diamagnetic material and may be shaped and incorporated into the chip package to divert stray magnetic fields away from the MRAM device.

Abstract: A photoplethysmographic instrument for simultaneous recordings of multifinger blood flow. The instrument consists of a plurality of suitably spaced and angled finger-receiving housings, each containing a photodetector, with respective light pipe bundles conducting light from a common source to the housings. The photodetectors respond to differences in light transmission through the patient's fingers inserted in the housings. The photodetectors are connected through respective preamplifiers to the respective inputs of a multichannel recorder, thereby providing recorded traces of the respective optical transmissions through the fingers. The photodetectors may also be connected to the respective inputs of a multichannel tape recorder, thereby providing magnetic tape recordings of the respective optical transmissions.

Abstract: A combined police and fire alarm system has provision for voice communication between street corner boxes and a central station via existing telegraphic cables. The boxes automatically transmit identification signals to the central station upon being activated. The central station can check out the boxes by causing them to transmit their identification signals and an audio test signal.