Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6546116 | Adjusting an electronic camera to acquire an image The present invention provides a mechanism for automatically setting the exposure time and gain of an electronic camera so that the acquired image has improved characteristics for the detection of a digital watermark. With the present invention the exposu... | 04/08/2003 |
| 6505039 | Call security system which detects fraud by examination of call history A method and apparatus for reducing the vulnerability of the telecommunications system to unauthorized use that is easy to implement and that can reduce the instances of unauthorized access even during periods when telecommunications personnel are not abl... | 01/07/2003 |
| 6433668 | Paging system with spacial, frequency and time diversity The present invention provides a highly reliable radio paging system. The radio paging system of the present invention provides a combination of time, frequency and spacial diversity in order to increase the reliability of the system. Time diversity is pr... | 08/13/2002 |
| 6421070 | Smart images and image bookmarking for an internet browser Web pages which contain images are displayed by a browser. A special visual indicia is placed on any the images which contain a digital watermark so that a user can know that the image contains hidden watermark data. By clicking on the indicia which is pl... | 07/16/2002 |
| 6389151 | Printing and validation of self validating security documents Security documents which has multiple fields or areas each of which contains information that is perceptible in more than one way: One field can contain a visually perceptible image and a digital watermark that can be detected when the image is scanned an... | 05/14/2002 |
| 6366680 | Adjusting an electronic camera to acquire a watermarked image The present invention provides a mechanism for automatically setting the exposure time and gain of an electronic camera so that the acquired image has improved characteristics for the detection of a digital watermark. With the present invention the exposu... | 04/02/2002 |
| 6356559 | Combined synchronous and asynchronous message transmission A communication system including a collection of modules coupled in a ring architecture which integrates synchronous and asynchronous message transmission. Asynchronous data packets and synchronous voice packets are exchange on a single communication link... | 03/12/2002 |
| 6337683 | Panoramic movies which simulate movement through multidimensional space Movement through multi-dimensional space is simulated using a series of panoramic images which are projected or displayed in sequence. The user's direction of view, that is the selected view window, is maintained as the series of images is projected or di... | 01/08/2002 |
| 6323858 | System for digitally capturing and recording panoramic movies The present invention provides a very flexible, digital system for capturing and storing panoramic images using progressive scan (that is, non interlaced) technology. The system includes a digital image input device and an associated control computer. Sin... | 11/27/2001 |
| 6324573 | Linking of computers using information steganographically embedded in data objects A given data object was effectively contain both a graphical representation to a network user and embedded information, such as the URL address of another network node, thereby to permit the object itself to serve as an automated hot link. The underlying ... | 11/27/2001 |
| 6320944 | Intelligent configuration server An intelligent configuration system automatically logs a sample of a PBX Call Detail Recording (CDR) message. The sample CDR messages are sent via modem from a local call accounting system connected to the PBX to a central configuration server. The config... | 11/20/2001 |
| 6320680 | Stochastic scanning documents to change moire effects An additional motion is introduced into a scanning operation. This additional motion is in addition to the motion that is inherent in any document scanning operation. For example, in a flatbed scanner a linear array of scanning devices is positioned acros... | 11/20/2001 |
| 6320584 | Method and apparatus for simulating movement in multidimensional space with polygonal projections from subhemispherical imagery A method and apparatus for generating views of an environment with proper perspective and parallax. This invention captures panoramic views at many points in the environment, preferably by using fisheye lenses with subhemispherical fields of views to yiel... | 11/20/2001 |
| 6229924 | Method and apparatus for watermarking video images Embedding a watermark in an image by changing selected DCT coefficients in the blocks and macro blocks of coefficients which represent the image. The changes in the blocks that comprise each macro block are done in a coordinated manner so that the phase o... | 05/08/2001 |
| 6215413 | User selectable receiver addresses for wireless communication systems Selectable receiver addressing is used to control how messages are output from different receivers. Users selectively enable and disable personal addresses in the receiver. The receiver polls time slots where the data for enabled addresses may be transmit... | 04/10/2001 |
| 6185415 | Call security system An access-control module (22) is used in connection with a conventional private branch exchange (12) to control direct inward service access (DISA), by which callers calling in on one trunk are afforded access to an outgoing trunk or other destination wit... | 02/06/2001 |
| 6122403 | Computer system linked by using information in data objects Various improvements to steganographic systems, and applications therefore, are disclosed. The improvements include facilitating scale and rotation registration for steganographic decoding by use of rotationally symmetric steganographically embedded patte... | 09/19/2000 |
| 6108346 | Combined synchronous and asynchronous message transmission A communication system including a collection of modules coupled in a ring architecture which integrates synchronous and asynchronous message transmission. Asynchronous data packets and synchronous voice packets are exchange on a single communication link... | 08/22/2000 |
| 6072827 | Automatic baud rate detection A method of automatic baud rate detection disclosed includes use of low cost hardware to detect framing errors, detect actual transitions in a serial transmission, and calculate transitions in the character received. A current baud rate is taken as being ... | 06/06/2000 |
| 6067445 | Dual channel dual speed FM subcarrier paging system The effective transmission range of a wireless paging system is varied by changing the transmission data rate. The transmission data rate is lowered in regions with sparse transmitter coverage to increase the effective transmission range of the transmitte... | 05/23/2000 |
| 6031540 | Method and apparatus for simulating movement in multidimensional space with polygonal projections from subhemispherical imagery A method and apparatus for generating views of an environment with proper perspective and parallax. This invention captures panoramic views at many points in the environment, preferably by using fisheye lenses with subhemispherical fields of views to yiel... | 02/29/2000 |
| 6026140 | Low power programmable ripple counter A ripple counter becomes programmable by use of intervening circuitry selectively inhibiting state transitions according to an initial programming step. The illustrated embodiment of a programmable ripple counter includes a forward chain of count register... | 02/15/2000 |
| 5986513 | Phase locked loop with limited lock time A phase locked loop circuit employing a single phase detector provides limited maximum lock time by avoiding hang-up. The circuit first establishes a gross indication of phase relation sufficient to establish a direction of phase shift away from the unsta... | 11/16/1999 |
| 5929771 | Portable wireless communication device A portable communication device which also has an infrared transceiver. A portable communication device can automatically establish infrared communication sessions with another portable communication device or desktop computer having an infrared transceiv... | 07/27/1999 |
| 5926530 | Intelligent configuration server An intelligent configuration system automatically logs a sample of a PBX Call Detail Recording (CDR) message. The sample CDR messages are sent via modem from a local call accounting system connected to the PBX to a central configuration server. The config... | 07/20/1999 |
| 5877744 | Single button control for information display Small electronic information storage and display devices such as paging devices with a limited number of control buttons allow user navigation of complex data structures by use of a single control button. Where a user has opportunity to branch within the ... | 03/02/1999 |
| 5858179 | Method of treating keratinic fibers such as a mammalian hair with a combination of chemicals and electromagnetic radiation A combination of chemicals and electromagnetic radiation is used to alter the physical characteristics of keratinic fibers such as mammalian or human hair. A non-irritating, non-reactive disulfide in the form of a solution or gel is first contacted with t... | 01/12/1999 |
| 5833156 | Fishing reel with automatic backlash control Backlash in a fishing reel is eliminated by automatically matching the reel discharge speed to the line speed. The drag on the reel is automatically adjusted so that the reel discharge speed does not exceed the line speed. The invention includes a reel, a... | 11/10/1998 |
| 5828314 | Pager with adaptable alarm A paging device references current ambient sound energy in selecting alarm presentation. In the illustrated embodiment, a low volume alarm presentation occurs in relatively quiet ambient sound conditions and a high volume alarm presentation occurs in rela... | 10/27/1998 |
| 5826178 | Loop antenna with reduced electrical field sensitivity A small, high Q loop antenna configured on a printed circuit board as a planar structure receives a radio signal and shields its interior planar area against interfering electric field energy while concentrating therein radio signal magnetic flux. A magne... | 10/20/1998 |
| 5782033 | Fishing device with strike detection, data lock and line breakage protection A conventional fish attracting device (i.e. a conventional lure or bait) is attached to a submersible unit. The submersible unit is attached to an electronic unit on a fishing rod by means of an optical cable. The submersible unit measures the amount of t... | 07/21/1998 |
| 5774798 | Low power data receiver combined with audio receiver A combined audio receiver and data receiver act in cooperation to serve audio presentation, digital collateral data presentation, and paging functions. The data receiver activates intermittently according to a time-division multiplexed broadcast protocol ... | 06/30/1998 |
| 5757782 | Paging system with multiple baseband subcarriers Pager data is transmitted at different subcarrier frequencies on different FM broadcast channels. The subcarrier frequency of the pager data is selected to avoid conflicts with signals transmitted from other systems. The pager receiver decodes data at any... | 05/26/1998 |
| 5745777 | Analyzer for frequency modulated signals An FM signal or protocol analyzer (PA) system: The PA system is capable of analyzing the broadcast signal at many levels, from analysis of the physical RF link to comprehensive analysis of the subcarrier messaging. The PA system is built on a computer inc... | 04/28/1998 |
| 5745439 | Combined stopwatch and pager A paging device in combination with an accurate stopwatch includes a stopwatch timer block supported by latent processor element resources. The user directly manipulates, e.g., starts and stops, the timer block without processor element intervention. The ... | 04/28/1998 |
| 5734705 | Intelligent configuration server for PBX An intelligent configuration system automatically logs a sample of a PBX Call Detail Recording (CDR) message. The sample CDR messages are sent via modem from a local call accounting system connected to the PBX to a central configuration server. The config... | 03/31/1998 |
| 5733131 | Education and entertainment device with dynamic configuration and operation A one-way individual or group addressable communication link by paging system protocol delivers to a small data terminal of an entertainment or education device command messages relevant to current real world information such as news or weather informatio... | 03/31/1998 |
| 5729590 | Acknowledge back pager using secondary transmission source A pager receives a wireless telecommunication message from central paging terminal. Upon successful transmission of the message to the pager, the message is acknowledged initiating transmission of an acknowledge signal from the pager. The pager transmits ... | 03/17/1998 |
| 5684411 | Self-configuring bus Integrated circuit design contemplating alternate applications incorporates devices, e.g. a gatable pull-down FET resistor, responsive to signal activity at an integrated circuit pin. Signal activity, as opposed to traditional configuration mechanisms, di... | 11/04/1997 |
| 5682148 | Paging system with message numbering prior to transmission A paging system repeatedly broadcast each message and associates a sequential message number with each paging message. The message number in each message serves two functions. First, the message number is used to determine if the same message was previous... | 10/28/1997 |
