Abstract: An alarm screen comprises a frame comprising a laser sensor, a processing unit, and a wireless transmitter embedded in a hollow interior. The frame comprises an opening for the laser sensor to project a laser beam outside of the alarm screen. The laser sensor projects the beam through the opening, makes a set of one or more measurements of a distance between the laser sensor and an object in a path of the laser beam, and sends the set of measurements to the processing unit. The processing unit is configured to compare the distance measurements received from the laser sensor with a threshold distance detect, and send one or more signals to the wireless transmitter when at least one of the distance measurements received from the laser sensor exceeds the threshold. The wireless transmitter is configured to receive signals from the processing unit and wirelessly transmit the signals.

Abstract: An alarm screen comprises a frame comprising a laser sensor, a processing unit, and a wireless transmitter embedded in a hollow interior. The frame comprises an opening for the laser sensor to project a laser beam outside of the alarm screen. The laser sensor projects the beam through the opening, makes a set of one or more measurements of a distance between the laser sensor and an object in a path of the laser beam, and sends the set of measurements to the processing unit. The processing unit is configured to compare the distance measurements received from the laser sensor with a threshold distance detect, and send one or more signals to the wireless transmitter when at least one of the distance measurements received from the laser sensor exceeds the threshold. The wireless transmitter is configured to receive signals from the processing unit and wirelessly transmit the signals.

Abstract: An alarm screen comprises a frame comprising a laser sensor, a processing unit, and a wireless transmitter embedded in a hollow interior. The frame comprises an opening for the laser sensor to project a laser beam outside of the alarm screen. The laser sensor projects the beam through the opening, makes a set of one or more measurements of a distance between the laser sensor and an object in a path of the laser beam, and sends the set of measurements to the processing unit. The processing unit is configured to compare the distance measurements received from the laser sensor with a threshold distance detect, and send one or more signals to the wireless transmitter when at least one of the distance measurements received from the laser sensor exceeds the threshold. The wireless transmitter is configured to receive signals from the processing unit and wirelessly transmit the signals.

Abstract: An alarm screen is provided that comprises a frame comprising a hollow interior. The alarm screen comprises a mesh attached to the frame and a detection wire for carrying electric current, where at least a portion of the detection wire is woven through or overlaid on the mesh. The alarm screen comprises an antenna and at least one circuit board embedded in the hollow interior of the frame. The circuit board comprises a processing unit and a wireless transmitter communicatively coupled to the processing unit. The processing unit is configured to detect that no current is carried through the detection wire and to send a signal to the wireless transmitter. The wireless transmitter is configured to receive signals from the processing unit and wirelessly transmit the signals received from the processing unit through the antenna.

Abstract: An alarm screen comprises a frame comprising a laser sensor, a processing unit, and a wireless transmitter embedded in a hollow interior. The frame comprises an opening for the laser sensor to project a laser beam outside of the alarm screen. The laser sensor projects the beam through the opening, makes a set of one or more measurements of a distance between the laser sensor and an object in a path of the laser beam, and sends the set of measurements to the processing unit. The processing unit is configured to compare the distance measurements received from the laser sensor with a threshold distance detect, and send one or more signals to the wireless transmitter when at least one of the distance measurements received from the laser sensor exceeds the threshold. The wireless transmitter is configured to receive signals from the processing unit and wirelessly transmit the signals.

Abstract: An alarm screen is provided that comprises a frame comprising a hollow interior. The alarm screen comprises a mesh attached to the frame and a detection wire for carrying electric current, where at least a portion of the detection wire is woven through or overlaid on the mesh. The alarm screen comprises an antenna and at least one circuit board embedded in the hollow interior of the frame. The circuit board comprises a processing unit and a wireless transmitter communicatively coupled to the processing unit. The processing unit is configured to detect that no current is carried through the detection wire and to send a signal to the wireless transmitter. The wireless transmitter is configured to receive signals from the processing unit and wirelessly transmit the signals received from the processing unit through the antenna.

Abstract: An alarm screen comprises a frame that has a hollow interior. The alarm screen comprises a mesh that is attached to the frame. The alarm screen comprises a detection wire for carrying electric current, where at least a portion of the detection wire is woven through or overlaid on the mesh. The alarm screen comprises a processing unit embedded in the hollow interior of the frame. The alarm screen comprises a wireless transmitter embedded in the hollow interior of the frame and communicatively coupled to the processing unit. The processing unit is configured to detect that no current is carried through the detection wire and to send a signal to the wireless transmitter. The wireless transmitter is configured to receive signals from the processing unit and wirelessly transmit the signals received from the processing unit.

Abstract: A particle detector includes a support member. A front electrode layer is disposed over the support member. A semiconductor heterojunction is disposed over the front electrode layer. The semiconductor heterojunction has at least a polycrystalline n-type layer and at least a polycrystalline p-type layer. A back electrode layer is disposed over the semiconductor heterojunction. The back electrode includes at least one removed portion that separates a first portion of the back electrode layer from a second portion of the back electrode layer. The particle detector also includes a first body of electrically insulating material which separates a first portion of the semiconductor heterojunction from a second portion of the semiconductor heterojunction. The first body of electrically insulating material also separates a first portion of the front electrode layer from a second portion of the front electrode layer.

Abstract: A particle detector includes a support member. A front electrode layer is disposed over the support member. A semiconductor heterojunction is disposed over the front electrode layer. The semiconductor heterojunction has at least a polycrystalline n-type layer and at least a polycrystalline p-type layer. A back electrode layer is disposed over the semiconductor heterojunction. The back electrode includes at least one removed portion that separates a first portion of the back electrode layer from a second portion of the back electrode layer. The particle detector also includes a first body of electrically insulating material which separates a first portion of the semiconductor heterojunction from a second portion of the semiconductor heterojunction. The first body of electrically insulating material also separates a first portion of the front electrode layer from a second portion of the front electrode layer.

Abstract: The present invention provides novel magnetic recording media wherein the magnetic recording material is an alloy consisting essentially of a major amount of cobalt and either or both of a minor amount of a nonmagnetic element soluble in cobalt which reduces the face-centered cubic phase, or a minor amount of another element which increases the coercive force of the alloy by isolating grain boundaries. The presence of either or both of these additives increases the coercive force of the alloy with attendant improvement in digital recording performance.

Abstract: This invention relates to an instrument or device capable of performing a non-destructive evaluation of the major magnetic properties of a recording disc member that determines the basic digital recording performance of said member. These measurements include the non-destructive evaluation of parameters including coercive force and remanence-thickness product of the recording member as a function of the circumference and/or the radius of the recording member. These parameters determine the signal amplitude as well as the frequency response of the disc member.

Abstract: Apparatus and method of verification of credit cards, including sensing information thereon and comparing said information with information on a specially designed pre-printed carrier, followed by insertion of one or more cards in the matching carrier as required, folding and stacking card-inserted carriers in a manner ready for subsequent insertion into mailing envelopes. Sensing, input, comparison logic, and timed command circuitry for coordination of operation includes a pause mode of card advance and may optionally include a multiple card search mode to find matching cards when card sequence is improper.

Abstract: Apparatus is disclosed for recording magnetic impulses on a selectively magnetizable medium with such impulses being recorded with their axes of magnetization substantially perpendicular to the surface of the medium utilizing a recording medium having a high magnetic permeability backing layer and an overlying coating of magnetic material having uniaxial anisotropy substantially perpendicular to the surface of the backing layer, and using a unitary magnetic head for both recording and playback with such head positioned adjacent to one side of the recording medium.

Abstract: A structure and method for manufacturing said structure are disclosed for producing a surface of improved smoothness. The result is achieved by applying to the substrate a layer of low melting point metal or low melting point glass and elevating the composite structure to the melting point of said low melting point metal or low melting point glass. The said metal or glass thereupon spreads to a smooth surface of greatly improved roughness.

Abstract: Apparatus and method of verification of credit cards, including sensing information thereon and comparing said information with information on a specially designed pre-printed carrier, followed by insertion of one or more cards in the matching carrier as required, folding and stacking card-inserted carriers in a manner ready for subsequent insertion into mailing envelopes. Sensing, input, comparison logic, and timed command circuitry for coordination of operation includes a pause mode of card advance and may optionally include a multiple card search mode to find matching cards when card sequence is improper.

Abstract: This disclosure deals with a system for monitoring the rate of operation of a cyclically operating machine or process or the rate of cyclically recurring events. The system monitors the rate by sensing each cycle occurring during a sampling time interval or duration and generating a signal which is taken as a standard value representing a standard rate. Either the length of time required for a specific number of events is measured, or the number of events occurring in a specified time is measured. The measured value is compared with the standard value and an indication is made of the comparison.

Abstract: Single-sheet, multi-panel carriers for receiving and retaining credit cards during credit card issue and mailing procedures. Cards may be inserted in the carriers manually or by machine. Plural carrier forms are preferably provided in a continuous fan-folded web, and individual carriers are separable therefrom at perforations between subsequent and/or adjacent carriers. The carriers have special slits or slots for retaining one to four cards singly, or double that in a piggy-back manner, in vertical or horizontal configurations. Carriers also have a plurality of panels which assist in retaining the cards by wedge trapping during manual or machine issue processing (inserting, collating, verification and stuffing) and mailing operations. Carriers also carry verification and/or identification information thereon relating to the account, e.g.