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公开(公告)号：US3919527A
公开(公告)日：1975-11-11
申请号：US38278373
申请日：1973-07-26
Applicant: IBM
Inventor： BOWEN ARLEN J , DICKSON LEROY D , GORETZKI JEROME A , HENDRICKSON KENNETH E , KING DONALD P , KUEPER TERRANCE W , SODERSTROM RONALD L
CPC classification number: G06K7/10871
Abstract: An omnidirectional optical scanner scans bar coded labels passed relative to a rectangular scan window with a plurality of interlaced X''s whereby the labels are completely scanned irrespective of their orientation. The interlaced X''s are generated from a laser light source directed onto a first oscillating mirror for deflecting the light beam in a horizontal direction at a slow frequency. A second oscillating mirror is positioned to further deflect the light beam in a vertical direction at a higher frequency. The horizontal and vertical frequencies are set at a particular ratio so that the X''s overlap and the scan on the return passes midway between the legs of a previous scan. The horizontal and vertical amplitudes are controlled by horizontal and vertical photo detectors located adjacent the scan window which provide inputs to amplitude control circuits to assure an orthogonal pattern by keeping the crossing angle constant. The oscillating mirrors are phase and frequency locked by a precision digital system to assure phase lock stability and thereby prevent voids in the scan pattern. The scan window crops out the end portions of the scan pattern. Generally, the most linear parts of the scan pattern, but including the turn around portions of the scans within the scan window are used. However, in one embodiment, end mirrors fold the end portions of the scan pattern outside of the window into the scan window toward the center thereof to enhance the scanning of certain labels.
Abstract translation: 全向光学扫描仪扫描相对于具有多个交错X的矩形扫描窗口传送的条形编码标签，由此标签被完全扫描，而不管其取向如何。
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公开(公告)号：CA1179888A
公开(公告)日：1984-12-27
申请号：CA418013
申请日：1982-12-17
Applicant: IBM
Inventor： REESE DENNIS L , REGEHR JOHN L , SCHIERHORST ALBERT E , SODERSTROM RONALD L , THOMPSON JAMES M
Abstract: THERMAL PRINT HEAD HAVING GLAZED METAL SUBSTRATE A porcelain glazed metal bar has a rounded edge carrying a line of deposited print elements. Conductive lands deposited on both sides of the glazed bar connect the print elements to contacts for external circuitry. R0980-006
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公开(公告)号：CA1162228A
公开(公告)日：1984-02-14
申请号：CA352830
申请日：1980-05-27
Applicant: IBM
Inventor： CUNNINGHAM EARL A , CUTSHALL DAVID E , HEILING GERALD M , SODERSTROM RONALD L , THOMPSON JAMES M
Abstract: A driver circuit for a thermal printing element varies the power applied to the element, depending upon its recent history of energization, in order to maintain uniform print density desprite temperature variation in the element. A capacitor charges and discharges to measure time intervals since the last element energization to control the voltage applied by an output transistor.
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Patent Agency Ranking
公开(公告)号：BR9100035A
公开(公告)日：1991-10-22
申请号：BR9100035
申请日：1991-01-07
Applicant: IBM
Inventor： HEILING GERALD M , KNODEL DAVID A , PETERSON MICHAEL J , SCHUELKE BRIAN A , SILJENBERG DAVID W , SODERSTROM RONALD L , TRNKA JOHN T
Abstract: A fully redundant safety interlock system is provided comprising, means for detecting the loss of light on a fiber optic link; controller means, coupled to said means for detecting, for determining the safety condition of the link based on the output of said means for detecting, and for controlling the radiant energy output of an optical transmitter, based on the determined safety condition, via redundant output control signals; and means, coupled to said controller means, responsive to said redundant control signals, for interconnecting the output of said controller means to transmitter drive circuitry to thereby adjust the radiant energy output by the transmitter. According to a preferred embodiment of the invention, the controller means includes an electronic implementation of two independent state machines, each of which redundantly determines the connection state of the optical link between two optical link cards. The output from the state machines is used to adjust (for example, turn on and turn off) the drive circuitry for the transmitter via fully redundant paths which carry the redundant control signals.
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公开(公告)号：CA1131692A
公开(公告)日：1982-09-14
申请号：CA334069
申请日：1979-08-20
Applicant: IBM
Inventor： HARDING ROBERT F , HEILING GERALD M , HOLTER SPENCER C , SODERSTROM RONALD L
Abstract: IMPROVED SILICON THERMAL PRINTHEAD FOR ON-THE-FLY PRINTING On-the-fly thermal print definition and thermal printing speed are enhanced using a rectangular print mesa for thermal printing with the narrow dimension in the direction of relative motion between print element and print medium and using longer electrical pulses having an amplitude which drives the print element temperature only slighly above the transition temperature of the thermographic print medium. R0977-0166
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公开(公告)号：CA2032209C
公开(公告)日：1994-01-18
申请号：CA2032209
申请日：1990-12-13
Applicant: IBM
Inventor： HEILING GERALD M , KNODEL DAVID A , PETERSON MICHAEL J , SCHUELKE BRIAN A , SILJENBERG DAVID W , SODERSTROM RONALD L , TRNKA JOHN T
Abstract: A fully redundant safety interlock system is provided comprising, means for detecting the loss of light on a fiber optic link; controller means, coupled to said means for detecting, for determining the safety condition of the link based on the output of said means for detecting, and for controlling the radiant energy output of an optical transmitter, based on the determined safety condition, via redundant output control signals; and means, coupled to said controller means, responsive to said redundant control signals, for interconnecting the output of said controller means to transmitter drive circuitry to thereby adjust the radiant energy output by the transmitter. According to a preferred embodiment of the invention, the controller means includes an electronic implementation of two independent state machines, each of which redundantly determines the connection state of the optical link between two optical link cards. The output from the state machines is used to adjust (for example, turn on and turn off) the drive circuitry for the transmitter via fully redundant paths which carry the redundant control signals.
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公开(公告)号：CA2032209A1
公开(公告)日：1991-07-10
申请号：CA2032209
申请日：1990-12-13
Applicant: IBM
Inventor： HEILING GERALD M , KNODEL DAVID A , PETERSON MICHAEL J , SCHUELKE BRIAN A , SILJENBERG DAVID W , SODERSTROM RONALD L , TRNKA JOHN T
Abstract: A fully redundant safety interlock system is provided comprising, means for detecting the loss of light on a fiber optic link; controller means, coupled to said means for detecting, for determining the safety condition of the link based on the output of said means for detecting, and for controlling the radiant energy output of an optical transmitter, based on the determined safety condition, via redundant output control signals; and means, coupled to said controller means, responsive to said redundant control signals, for interconnecting the output of said controller means to transmitter drive circuitry to thereby adjust the radiant energy output by the transmitter. According to a preferred embodiment of the invention, the controller means includes an electronic implementation of two independent state machines, each of which redundantly determines the connection state of the optical link between two optical link cards. The output from the state machines is used to adjust (for example, turn on and turn off) the drive circuitry for the transmitter via fully redundant paths which carry the redundant control signals.
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公开(公告)号：CA1051553A
公开(公告)日：1979-03-27
申请号：CA203370
申请日：1974-06-25
Applicant: IBM
Inventor： BOWEN ARLEN J , DICKSON LEROY D , GORETZKI JEROME A , HENDRICKSON KENNETH E , KING DONALD P , KUEPER TERRANCE W , SODERSTROM RONALD L
Abstract: An omnidirectional optical scanner scans bar coded labels passed relative to a rectangular scan window with a plurality of interlaced X's whereby the labels are completely scanned irrespective of their orientation. The interlaces X's are generated from a laser light source directed onto a first oscillating mirror for deflecting the light beam in a horizontal direction at a slow frequency. A second oscillating mirror is positioned to further deflect the light beam in a vertical direction at a higher frequency. The horizontal and vertical frequencies are set at a particular ratio so that the X's overlap and the scan on the return passes midway between the legs of a previous scan. The horizontal and vertical amplitudes are controlled by horizontal and vertical photo detectors located adjacent the scan window which provide inputs to amplitude control circuits to assure an orthogonal pattern by keeping the crossing angle constant. The oscillating mirrors are phase and frequency locked by a precision digital system to assure phase lock stability and thereby prevent voids in the scan pattern. The scan window crops out the end portions of the scan pattern. Generally, the most linear parts of the scan pattern, but including the turn around portions of the scans within the scan window are used. However. in one embodiment, end mirrors fold the end portions of the scan pattern outside of the window into the scan window toward the center thereof to enhance the scanning of certain labels.
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