摘要:
A system for detecting the presence, in an audio channel which may contain voice signals, of a tone at a frequency selectable from among a plurality of selectable frequencies. A bandpass filter receives the audio input; its center frequency is selectable in response to a control signal. A first detector circuit provides from the output of the bandpass filter an output signal when a tone containing substantial energy at about said center frequency is input to the filter. A band-stop filter having the same center frequency as the bandpass filter also receives the input audio; a second detector circuit demodulates and thresholds the band-stop filter output. A micro-controller provides the control signal to set the center frequencies of said filters in response to user selection and analyzes the detector circuit output signals and generates an output signal when the output signal from the first detector circuit indicates the presence of a tone for a predetermined time and the output signal from the second detector circuit indicates the lack of presence of substantial energy at frequencies other than the center frequency for the same predetermined time. Optionally, the invention is applied to substitute for the operator a more pleasing signal than a tone at said filter center frequency.
摘要:
An air conditioning system uses microwaves to effectively destroy airborne contaminants. In one mode, air (8) is passed through a microwave-transparent tube (6) and is subjected to microwaves in the presence of one or more of water, water vapor, steam or hydrogen to cause destructive dipole polarization, electrical coupling, hydrolysis, and/or interfacial polarization of the contaminants or impurities found in the air (8). In another mode, solids or liquids are decontaminated by subjecting the objects to microwaves. Paramagnetic dust particles in the air, especially underground railway air, can also be removed using an electromagnet.
摘要:
In one embodiment, an integrated circuit chip includes a semiconductor substrate, a metal layer formed on the semiconductor substrate, and an unused auxiliary resource that is tied to ground or to a supply voltage such that current does not flow through the resource and power is not dissipated by the resource, wherein the auxiliary resource can be tied into the integrated circuit to modify operation of the chip.
摘要:
Methods and systems are provided for coordinating a project-commitment process for an organization. An interface is provided to a computational system for coordinating communications among personnel of the organization. A request is received from a customer or an agent of the customer at the organization. The request includes specification of project parameters for a project. A series of communications within the organization are coordinated using the computational system to evaluate a capacity of the organization to implement the project in accordance with the project parameters. From the evaluated capacity, it is determined whether the organization may commit to performing the project on behalf of the customer.
摘要:
Diagnostic information is produced from a computer memory operably connected to a DBMS. A command is received from a user wherein the command comprises an identifier of a resource associated with the DBMS. The identifier is utilized to determine one or more control blocks residing within the computer memory and wherein the one or more control blocks are related to the resource. The memory locations occupied by the one or more control blocks are determined and the contents of the memory locations are then copied to a target destination. In this manner, the target destination forms a logical dump containing the diagnostic information.
摘要:
A method for increasing the compressive modulus of aerogels comprising: providing aerogel substrate comprising a bubble matrix in a chamber; providing monomer to the chamber, the monomer comprising vapor phase monomer which polymerizes substantially free of polymerization byproducts; depositing monomer from the vapor phase onto the surface of the aerogel substrate under deposition conditions effective to produce a vapor pressure sufficient to cause the vapor phase monomer to penetrate into the bubble matrix and deposit onto the surface of the aerogel substrate, producing a substantially uniform monomer film; and, polymerizing the substantially uniform monomer film under polymerization conditions effective to produce polymer coated aerogel comprising a substantially uniform polymer coating substantially free of polymerization byproducts. Polymer coated aerogel comprising aerogel substrate comprising a substantially uniform polymer coating, said polymer coated aerogel comprising porosity and having a compressive modulus greater than the compressive modulus of the aerogel substrate, as measured by a 100 lb. load cell at 1 mm/minute in the linear range of 20% to 40% compression.
摘要:
A system for administering scan-based promotions involving manufacturers and retailers. The system records the terms of the promotion, ensures that the promotion is conducted in compliance with the agreed terms, settles the promotion and provides continual promotion progress for review by the retailers and the manufacturers.
摘要:
A preventive and/or therapeutic massage device having a fine contact edge and a pressure dispersing edge to provide alternative modes of stretching to the skin, muscles, fascia, and/or tendons of a user. The massage device includes a main body portion with first and second opposed surfaces defined between lower and upper portions and first and second ends. An upper handle portion is formed between the first and second opposed surfaces along the upper portion of the main body. The fine contact edge is formed along the lower portion of the main body and the pressure dispersing edge extends from the first opposed surface. The fine contact edge is used to provide an aggressive, deep stretch, while use of the fine contact edge in combination with the pressure dispersing edge provides a gentle stretch.
摘要:
A wall plate for premise wiring. The wall plate is preterminated with a quick-connect coupling to enable fast connection and disconnection with a complementary quick-connect coupling on a wire configured to carry an electrical signal, such as digital or analog audio, visual or related signal. The wall plate may include numerous signal interfaces for audio, visual or combination audio/visual application. By including all of the components into a modular package, installation and removal of the wall plate for premise wiring upgrades is enhanced.
摘要:
A wall plate for premise wiring. The wall plate is preterminated with a quick-connect coupling to enable fast connection and disconnection with a complementary quick-connect coupling on a wire configured to carry an electrical signal, such as digital or analog audio, visual or related signal. The wall plate may include numerous signal interfaces for audio, visual or combination audio/visual application. By including all of the components into a modular package, installation and removal of the wall plate for premise wiring upgrades is enhanced.