摘要:
An electronic device and method for controlling the electronic device are disclosed. The electronic device includes at least one interface, a processor and a video processor. The interface receives a first audio signal and a first video signal. The processor receives either the first audio signal or the first video signal and compares a characteristic of that signal against a threshold value. The processor also outputs a first control signal, based on the comparison. The video processor receives the first control signal and outputs a composite video signal in response to the first control signal comprised of a television program or content retrieved from a DVD and an icon.
摘要:
A system and method for controlling fluid pressure downstream a main valve includes associating a variable orifice with the main valve such that the variable orifice opens as the main valve is opened and closes as the main valve is closed. A fluid stream taken from a fluid inlet of the main valve is passed to an inlet of the variable orifice. A fixed orifice is in fluid communication with an outlet of the variable orifice. A pressure differential between the inlet and outlet of a fixed orifice is detected by a control pilot device, which hydraulically opens or closes the main valve in response to the detected fixed orifice pressure differential between low pressure and high pressure set points.
摘要:
A system for hydraulically managing fluid pressure between selected set points includes a pilot control system operably coupled to a main valve. The pilot control system includes at least one fluid conduit, a variable orifice assembly, and a control pilot valve apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
摘要:
A drilling or service rig includes a worm drive disposed within and rotatably supported within a mast having one open side. The worm drive defines a helical groove, and a collar is disposed on the worm drive and engages the helical groove. Rotation of the worm drive causes movement of the collar upwards or downwards along the worm drive. The collar may support a block and top drive assembly.
摘要:
A method and apparatus is provided for recording at least one program received over a broadband communications system. The method begins by accessing a database that includes program information that describes with program attributes a plurality of programs available over the broadband communications system. User-defined criteria are received that identify preferred program attributes. The database is sorted through to identify at least one preferred program having program attributes that include the preferred program attributes. From information in the database a first scheduled time at which the preferred program is to be received is identified. The first scheduled time is compared to another scheduled time of another program to be recorded. If the first scheduled time and the other scheduled time overlap in whole or in part, thereby giving rise to a scheduling conflict, the method continues by sorting through the database to identify a second scheduled time at which either the preferred program or the other program is available. Recording is then scheduled at the second scheduled time of either the preferred program or the other program that is available at the second scheduled time. Recording is next scheduled of a remaining one of the preferred program or the other program at the first scheduled time or the other scheduled time, respectively.
摘要:
A system for hydraulically managing fluid pressure between selected set points includes a pilot control system operably coupled to a main valve. The pilot control system includes at least one fluid conduit, a variable orifice assembly, and a control pilot valve apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
摘要:
A system and method for controlling fluid pressure downstream a main valve includes associating a variable orifice with the main valve such that the variable orifice opens as the main valve is opened and closes as the main valve is closed. A fluid stream taken from a fluid inlet of the main valve is passed to an inlet of the variable orifice. A fixed orifice is in fluid communication with an outlet of the variable orifice. A pressure differential between the inlet and outlet of a fixed orifice is detected by a control pilot device, which hydraulically opens or closes the main valve in response to the detected fixed orifice pressure differential between low pressure and high pressure set points.
摘要:
An apparatus for releasably clamping and holding a member for wellbore operations, the apparatus having a main body, two opposed clamping apparatuses in the main body, the two opposed clamping apparatuses spaced-apart for selective receipt therebetween of a member to be clamped therebetweeen, each of the two opposed clamping apparatuses having a mount and piston apparatus movable within the mount, the piston apparatus selectively movable toward and away from a member to be clamped, two legs, the legs spaced-apart and each leg with an upper end and a lower end, each lower end connected to the main body, and each leg comprising an outer leg portion and an inner leg portion, the inner leg portion having part thereof movable within the outer leg portion to provide a range of up/down movement for the main body.
摘要:
An containerized top drive system including a container, top drive apparatus removably disposed within the container, an extension system for moving the top drive apparatus generally horizontally within a derrick, the top drive apparatus secured to the extension system, the extension system removably disposed within the container with the top drive apparatus, and the track including at least one track part which is a skid track part, the skid track part including a skid portion and a track portion, the top drive apparatus and the extension system located on the at least one skid track part within the container and the top drive apparatus supported by and movable with the at least one skid track part.
摘要:
A system for hydraulically managing fluid pressure between selected set points includes a pilot control system operably coupled to a main valve. The pilot control system includes at least one fluid conduit, a variable orifice assembly, and a control pilot valve apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.