Controller including multi-function
Patent 5654739 Issued on August 5, 1997. Estimated Expiration Date: 
November 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesEngine analyzer with digital waveform display Oscilloscope control Front panel for a process controller Transducer for process control Digital telecommunication network cross-connect module having a printed circuit board connected to jack switches Digital engine analyzer Patent #: 5245324 InventorsAssigneeApplicationNo. 552361 filed on 11/02/1995US Classes:345/440.1, Real-time waveform display345/440.2, Bar graph361/731, Interchangeable439/912, WITH TESTING MEANS702/57Electrical signal parameter measurement systemExaminersPrimary: Hjerpe, RichardAssistant: Lao, Lun-Yi Attorney, Agent or FirmInternational ClassG09G 005/00AbstractThe controller executes a control calculation based on proportional and integration calculation parameters which are preset, and outputs a control output to a process, and comprises a display device for displaying panels having characters and figures thereon; a panel expanding key for instructing the display device to expand, or change, the panel to be displayed; a plurality of keys for setting control operations and various parameters; an operating panel generating unit for displaying as a bar graph; a process value and a control output value on an operating panel to be displayed on the display device; a trend graph panel generating unit for displaying the transition of the process value on a trend graph panel to be displayed on the display device; a tuning panel generating unit for displaying information to control the control parameter used in the control calculation on a tuning panel to be displayed on the display device; a display controlling unit for controlling the displays of the panels; and an operation key function changing unit for changing the functions of the plurality of keys.Field of SearchWITH INDICATING OR IDENTIFYING PROVISIONConnection indicating provision SAFETY, E.G., ELECTRICAL DISCONNECTION REQUIRED BEFORE OPENING HOUSING WITH TESTING MEANS Using radiant energy INTERNAL-COMBUSTION ENGINE IGNITION SYSTEM OR DEVICE Plural ranges, scales or registration rates With analysis of displayed waveform With amplifier or space discharge device Feedback amplifiers For electronic systems and devices Including display support With cooling means Fluid Air Pressurized or conditioned Plural Openings Circular With air circulating means Fan or blower With heat exchanger unit With heat sink or cooling fins Input/output device support Selective connections Interchangeable ELECTRONIC BOOK WITH DISPLAY | |
