Patents by Inventor Raymond A. Lloyd
Raymond A. Lloyd has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4402055Abstract: An automatic test system controlled by a general purpose digital central processor is disclosed. The central processor accepts test programs in a high level compiler language such as Atlas. The Atlas program is compacted into a simplified language which is utilized to communicate with test devices via a standard IEEE 488 data bus. Each of the test devices includes a programmable interface digital processor which performs any translation that may be necessary in order to permit specific test instruments coupled to the central processor via the interface processor to perform the tests specified by the high level test programs. A switching matrix also communicates with the digital processor to connect the appropriate test device to the unit under test.Type: GrantFiled: January 27, 1981Date of Patent: August 30, 1983Assignee: Westinghouse Electric Corp.Inventors: Raymond A. Lloyd, Larry L. Charles, William F. Susie, Allen W. Tate, Jr., James R. Reeder
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Patent number: 4397021Abstract: A test system utilizing a plurality of programmable test instruments each capable of executing portions of a test program with the test program being written in a compiler language such as ATLAS, for example, is disclosed. Programs specifying the tests to be performed are written in a compiler language such as ATLAS and transferred to a central control processor utilizing standard peripheral equipment. The central control processor communicates with a plurality of test instruments utilizing a series of data busses. In executing the test program, the control processor first segments the program into a series of individual tests to be performed. The test instruments are interrogated to determine which of the test instruments is currently capable of executing a specific sequence of the test program. Once an instrument has been identified which can execute the program segment, the control process transfers that segment to the instrument capable of executing the test.Type: GrantFiled: June 15, 1981Date of Patent: August 2, 1983Assignee: Westinghouse Electric Corp.Inventors: Raymond A. Lloyd, Derek B. Eckert, Theodore B. Stagg, Jr.
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Patent number: 4260190Abstract: A hinge construction especially for a vehicle seat comprises a pair of hinged plates for attachment to the seat base and backrest. One plate rotatably mounts a disc which is formed with a slot of spiral configuration and the other plate is provided with a pin which is received in the slot so that turning of the disc causes relative hinging of the plates.Type: GrantFiled: February 6, 1978Date of Patent: April 7, 1981Assignee: H. R. Turner (Willenhall) LimitedInventors: Ian P. Holloway, Raymond A. Lloyd
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Patent number: 4099668Abstract: A monitoring circuit for digital circuits is disclosed. The monitor is primarily applicable to digital circuits which operate in a cyclic mode with the digital patterns generated during each cycle being repeated in a predictable manner. A predetermined number of expected bit patterns are stored in a programmable memory. The stored bit patterns correspond on a bit-by-bit basis to the bit patterns generated by the circuit being monitored when this circuit is operating normally. In the self-scan mode each pattern generated by the circuit being monitored is compared to each of the patterns stored in the memory in a sequential manner. Each time a pattern generated by the circuit being monitored is found to identically correspond to a pattern stored in the memory a valid pattern pulse is generated which steps a down counter one count.Type: GrantFiled: October 29, 1976Date of Patent: July 11, 1978Assignee: Westinghouse Electric Corp.Inventors: Michal M. Feilchenfeld, Kenneth E. Daggett, Raymond A. Lloyd
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Patent number: 4084262Abstract: A digital monitor for monitoring the operation of a synchronous digital system. Proper operation of the monitored digital system is determined by storing a predetermined sequence of digital numbers in a memory. The bit patterns generated by the system being monitored are utilized as addresses to read the stored digital numbers. After each read cycle the digital number read from the memory is examined to determine if it has the proper value. If the value is not proper, a memory is set indicating that the system being monitored has malfunctioned. Additionally, the number of bit patterns checked during each cycle of the system is determined. If the correct number of patterns are not checked, the memory is also set indicating that a malfunction has occurred. Apparatus for monitoring a selected number of analog signals such as power supply voltages is also provided. Either of these tests may be inhibited by signals from the system being monitored or by signals from an external source.Type: GrantFiled: May 28, 1976Date of Patent: April 11, 1978Assignee: Westinghouse Electric CorporationInventors: Raymond A. Lloyd, Thomas A. Keller
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Patent number: 3987241Abstract: A system for evaluating members or a family of similar devices by comparing images of a model device to the image of the member to be evaluated is disclosed. An image of the model device is first produced and stored in a memory. An image of the member to be evaluated is produced as the stored image of the model device is simultaneously reproduced. The images of the model and the member being evaluated are compared to generate a comparison signal related to the differences therebetween. The comparison signal is sampled at a predetermined rate, to produce a digital signal indicating sample points where the comparison signal exceeds a predetermined value. Statistical techniques are used to analyze the digital signal to determine which portions of this signal correspond to significant differences between the images of the model device and the member being evaluated.Type: GrantFiled: October 17, 1974Date of Patent: October 19, 1976Assignee: Westinghouse Electric CorporationInventors: Raymond A. Lloyd, Kenneth C. Ryan, Robert Martinez
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Patent number: 3969577Abstract: A system for evaluating similar object by comparing an image of the objects to be evaluated to the image of a similar object is disclosed. The system utilizes a TV camera to generate and store in a video memory an image of a reference member of the family of objects to be evaluated. This reference member has been previously evaluated by other means to determine that it meets predetermined specifications. An image of the member to be evaluated is then generated by focusing the TV camera on this member. Simultaneously, the stored image of the reference member is read from the video memory. These two images are compared to each other by an analog circuit to generate an analog signal related to the difference between these two signals. Sync signals are also generated by the memory to control the TV camera and a line counter which indicates which lines of the TV images are being compared.Type: GrantFiled: October 15, 1974Date of Patent: July 13, 1976Assignee: Westinghouse Electric CorporationInventors: Raymond A. Lloyd, Kenneth C. Ryan, William L. Hrybyk, deceased