摘要:
A magnetic force generator includes a magnetic shell internally defining an armature chamber. At least three circumferential electric coils are spaced axially within the chamber. An armature supported in the chamber for reciprocation therein includes a plurality of aligned magnets separated by at least one intermediate magnetic steel plate sandwiched between like poles of adjoining magnets and a pair of end steel magnetic plates on opposite ends of the armature. The plates extend laterally to a periphery of the armature in general lateral alignment with the electric coils. Springs nominally center the armature between non-magnetic ends of the chamber. Controlled energizing of the coils reciprocates the armature axially relative to the shell to develop an opposite inertia force on the shell for application to a connected body. The use of multiple magnets improves performance and/or reduces cost compared to a single magnet of comparable size.
摘要:
A magnetic inertial force generator includes a magnetic shell internally defining an armature chamber. At least two circumferential electric coils are spaced longitudinally within the chamber and mounted on a cylindrical inner surface of the outer shell. An armature centered by springs is reciprocably supported in the chamber and includes at least two axially spaced radially magnetized permanent magnets mounted on a longitudinally extending magnetic steel tube. The magnets extend in general alignment with the coils. Controlled energizing of the coils reciprocates the armature axially relative to the shell to develop an opposite inertia force on the shell for application to a connected body. The use of multiple radially magnetized magnets provides for improved performance and/or reduced cost.
摘要:
The present invention is directed to an interactive intelligent toy that provides the appearance and experience of a toy hamster moving in, and interacting with, its environment and habitat. In an exemplary embodiment, the interactive intelligent toy comprises an intelligent motive and control component enclosed by a cover resembling a hamster, with fur coat, eyes, ears, mouth, nose, and whiskers. The motive component includes a drive mechanism and circuitry operable to control the drive mechanism, monitor and detect user and event inputs, and detect and decode embedded codes from a pathway and perform predetermined actions or generate predetermined sounds in response. The motive component moves along and through a pathway component having one or more embedded codes detectable by the motive component, the embedded codes providing information to the motive component to direct desired action of the motive component.
摘要:
A lighter with a pivoting cover is provided. The cover is manually actuated and is restricted in movement by a relatively high viscosity packing material encasing a biasing member.
摘要:
A method and apparatus for recognizing a state machine in circuit design in a high-level IC description language. The present invention analyzes high-level IC description language code, such as VHDL and Verilog®, of an IC design and extracts description information corresponding to a state machine. The description information can be, for example, the high-level IC description language code corresponding to the state machine, a state diagram of the state machine, a state table for the state machine, or other representation of the state machine. In one embodiment, the present invention identifies a set of one or more processes as defined by VHDL “process” statements. By identifying one or more clocked processes, one or more transition processes, and one or more output processes, the present invention provides a state machine summary to describe the state machine identified in the high-level IC description language code.
摘要:
A tracking system is described in which a mobile tag having an unknown position is tracked in space over time. The mobile tag transmits a signal comprising a sequence of frequency components at different frequencies. The transmitted signal is received at each of a plurality of receivers, each having a known location. Each of the receivers measures the phase of each of the tones and the phase measures are passed to a central processing unit. The central processing unit then uses the determined phase measures to determine the position of the tag at the time of the transmission. Various novel tag arrangements are described which generate new transmission signals which improve accuracy and reliability of the position measurements obtained.
摘要:
A signalling system is provided which can be used to update the prices of goods which are electronically displayed on supermarket shelves (1). The signalling system comprises a first signalling device having an input terminal for receiving electrical message data received from a central computer system (5), a spread spectrum encoder for encoding the received message data and an electroacoustic converter (11) for converting the encoded data into corresponding acoustic signals and for transmitting the acoustic signals into a transmission medium. The signalling system also comprises a second signalling device (3) having means for receiving acoustic signals from said transmission medium and for converting the received acoustic signals into corresponding electrical signals, a spread spectrum decoder for decoding the received signals and a message regenerator for regenerating the message data transmitted by the first signalling device from the signals output by the decoder.
摘要:
A method and apparatus for recognizing a state machine in circuit design in a high-level IC description language. The present invention analyzes high-level IC description language code, such as VHDL and Verilog®, of an IC design and extracts description information corresponding to a state machine. The description information can be, for example, the high-level IC description language code corresponding to the state machine, a state diagram of the state machine, a state table for the state machine, or other representation of the state machine. In one embodiment, the present invention identifies a set of one or more processes as defined by VHDL “process” statements. By identifying one or more clocked processes, one or more transition processes, and one or more output processes, the present invention provides a state machine summary to describe the state machine identified in the high-level IC description language code.
摘要:
A method for modulating a video signal. Frames of a plurality of frames are selected for modulation. A first magnitude alternation pattern is designated for each of a first area of a field of the selected frames. A second magnitude alternation pattern is designated for each of a second area of the field of the selected frames. The intensity of a plurality of pixels of a plurality of scan lines of the field of the selected frames is altered as designated by either the first magnitude alternation pattern or the second magnitude alternation pattern.