摘要:
A card is provided, such as a credit card or security card, that may transmit information to a magnetic stripe reader via a magnetic emulator. The emulator may transmit the information serially in order to reduce the amount of circuitry needed to emulate a particular block of information. Additionally, for example, a serial encoder may send any amount of information through a single emulation segment. Such a magnetic emulator may be provided on a credit card. A dynamic credit card number may be provided by, for example, coding a number with a different coding scheme for different periods of time. The magnetic emulator may be utilized to transmit a particular coded number for a particular period of time. In this manner, a dynamic credit card number may be provided such that to help secure, and progress, a payment transaction.
摘要:
It is an object of the present invention to provide NEMS that utilize electrostatic and electromagnetic forces to operate. In one nanoelectrostatic embodiment, a nanometer-scale beam is suspended in an electric field. Electrically charged rails are placed around the beam. When a beam contacts a rail, the beam is forced to move through the electric field in a particular direction. In one nanoelectromagnetic embodiment, a nanometer-scale beam is suspended in a magnetic field. A rail is located in the vicinity of the beam and opposite charges are applied to the rail and beam. In this manner, a current may flow between the beam and rail when the beam and rail contact each other. This current may interact with the magnetic field to move the beam in a particular direction.
摘要:
A dynamic credit card is provided in which a secure credit card number (e.g., a secret/hidden credit card number) is encoded based on a timing signal (e.g., an internal counter) to provide a dynamic credit card number. This dynamic number may be displayed to a user via a display (e.g., so that online purchases can be made) or written onto a magnetic stripe such that the number may be processed by traditional credit card merchants (e.g., swiped). At a remote facility, the dynamic number may be decoded based on time (and/or a counter/key number/equation) or the facility may have the secure number and perform the same function as the dynamic credit card (e.g., encode using time data as a parameter to the encoding equation) and compare the resultant dynamic number to the dynamic number received. Thus, a dynamic credit card number may change continually or periodically (e.g., every sixty seconds) such that credit card numbers may not be copied by thieves and used at later times. A dynamic verification code may be utilized in addition to, or in lieu of, a dynamic credit card number.
摘要:
Systems and methods for locating a cellular phone are provided. More particularly, systems and methods for providing the location of a requested user's cellular phone from a requesting user's device (e.g., a second cellular phone) based on access rights defined by the requested user. Location descriptions may be provided at a multitude of levels. For example, if a cellular phone, or an identity associated to (e.g., logged into) a cellular phone, has been given access rights to a cell phone's exact location for an indefinite amount of time, that cell phone can receive, on command, the exact location of the approved cell phone. Other levels of location information that can be granted include, for example, proximities, states, and countries.
摘要:
Nanoelectromechanical (NEM) memory cells are provided by anchoring a conductive nanometer-scale beam (e.g., a nanotube) to a base and allowing a portion of the beam to move. A charge containment layer is provided in the vicinity of this free-moving portion. To read if a charge is stored in the charge containment layer, a charge is formed on the beam. If a charge is stored then forces between the charged beam and the charge containment layer will displace the free-moving portion of the beam. This movement may be sensed by a sense contact. Alternatively, the beam may contact a sense contact at an ambient frequency when no charge is stored. Changing the amount of charge stored may change this contact rate. The contract rate may be sensed to determine the amount of stored charge.
摘要:
Nanoelectromechanical switch systems (NEMSS) that are structured around the mechanical manipulation of nanotubes are provided. Such NEMSS can realize the functionality of, for example, automatic switches, adjustable diodes, amplifiers, inverters, variable resistors, pulse position modulators (PPMs), and transistors.In one embodiment, a nanotube is anchored at one end to a base member. The nanotube is also coupled to a voltage source. This voltage source creates an electric charge at the tip of the free-moving-end of the nanotube that is representative of the polarity and intensity of the voltage source. The free-moving end of this nanotube can be electrically controlled by applying an electric charge to a nearby charge member layer that is either of the same (repelling) or opposite (attracting) polarity of the nanotube. A contact layer is then placed in the proximity of the free-moving end of the nanotube such that when a particular electric charge is placed on the nanotube, the nanotube electrically couples the contact layer.
摘要:
Systems and methods of creating talking books that employ photo-electronics to realize autonomous page recognition, are provided. More particularly, systems and methods are provided for employing one or more light sensing components (e.g., photoresistors, phototransistors, and photodiodes) on the pages of a book in order to recognize when a user is reading a particular page, or a pair of pages such that an audio segment associated to that page, or pair of pages, may be played. This invention also provides light sensing components that can recognize, and react to, user interactions with a talking book. Examples included playing a media segment or turning a particular LED ON for a particular action (e.g., covering an interacting light sensing component).
摘要:
A method for preparing silica, silica-chromium and silica-titanium-chromium polyolefin catalysts and catalyst supports wherein an alcohol-treated hydrogel is heated under partial oxidation conditions to reduce the carbon level to below about one weight percent prior to activation.
摘要:
Systems and methods are provided for text-to-speech and speech-to-text conversion in wireless devices such as wireless telephones, remote facilities, and land-based devices such as land-line telephones. A wireless telephone, such as a personal cellular telephone, is provided that converts audio data such as a voice message into text data such that a user can view the contents of the voice message as text on the user's wireless telephone.
摘要:
Systems and methods are provided for text-to-speech and speech-to-text conversion in wireless devices such as wireless telephones, remote facilities, and land-based devices such as land-line telephones. A wireless telephone, such as a personal cellular telephone, is provided that converts audio data such as a voice message into text data such that a user can view the contents of the voice message as text on the user's wireless telephone.