摘要:
The firing time of a spark plug (22) is optimized by measuring its actual firing time (as by detecting the rise of current in the secondary winding (44) of an ignition coil (24)), comparing the actual firing time to the desired firing time, and advancing or retarding the turn-off time of current in the ignition coil's primary winding (42) to reduce any measured difference between the measured actual firing time and the desired firing time. The measurements can also be used to provide diagnostic information concerning the ignition system.
摘要:
A wireless, programmable system for bio-potential signal acquisition (e.g., electrocardiogram (ECG) data) includes a base unit and a plurality of individual wireless, remotely programmable transceivers that connect to patch electrodes. The base unit manages the transceivers by issuing registration, configuration, data acquisition, and transmission commands using wireless techniques. Bio-potential signals from the wireless transceivers are demultiplexed and supplied via a standard interface to a conventional monitor for display.
摘要:
A self-contained remotely interrogated biomedical sensor (10) includes an on-board regenerative power source (52/54), data processing capability (42) and data transmission capability (42). The sensor (10) is adapted to be secured to a subject and interrogated remotely using radio-frequency technology. The present invention is applicable for use with any sensing device (76) that is capable of providing a signal in response to being placed in thermal, electrical, chemical, acoustical or otherwise in contact with the subject.
摘要:
A card assembly (10) comprises a polymeric layer (16) having a generally planar surface (24), an integrated circuit component (38) adjacent to the polymeric layer (16), and a loop antenna (24) formed of a bare conductor (32) having ends. The loop antenna (24) comprises a first section (26) embedded into the polymeric layer (16), a second section (28) embedded into the polymeric layer (16), and a transverse section (30) spaced apart from the first section (26) by a dielectric region. The transverse section (30) crosses the first section (26). The ends (34) are electrically coupled to the integrated circuit component (38). The dielectric region preferably comprises a reflowed flash region of the polymeric layer (16) such that the transverse section (30) is encapsulated within the polymeric layer (16). Alternately, the dielectric region comprises a dielectric insert separating the transverse section from the first section.
摘要:
An adaptive multi-receiver shared antenna matching system and corresponding method includes an antenna (101). A plurality receiver devices (103) are operably coupled to the antenna (101). Degree of coupling between each of the receiver devices (103) and the antenna (101) is dynamically alterable dependent on a degree of coupling model (200) and different signals received by the antenna (101).
摘要:
A unitary flexible substrate has three planar areas with components and conductors carried thereon. The substrate is folded to provide a subassembly with a compact packaging factor such that each planar area is in a different parallel plane. Two conductor-carrying projections of the substrate extend from different end portions of the substrate to free distal ends of the projections which are positioned adjacent to each other. The projection conductors, at the projection distal ends, are soldered to each other to provide a more direct, low resistance electrical connection between conductors on the substrate end portions. Heat sink rigidizer plates are attached to each of the three planar substrate portions. One rigidizer plate is thermally and planarly coupled to a metal heat sink cover of a protective housing for the folded subassembly. The other rigidizer plates are planarly bonded to each other to form a unitary support structure for two of the planar substrate portions.