Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 6546237 | Differential FM detector for radio receivers A differential FM detection of signals uses in-phase and quadrature phase signal components of a received signal in the detection process, wherein the in-phase and quadrature phase signal components are at a low intermediate frequency (IF). The in-phase a... | 04/08/2003 |
| 6529863 | Method and apparatus for providing interactive services with multiple interfaces Interactive services are provided by employing a modular approach to implementing interactive services with multiple interfaces. Such an approach facilitates supporting natural language understanding interaction with users through use of interfaces that a... | 03/04/2003 |
| 6516037 | Multilevel coding with time diversity A multilevel coded modulation scheme is provided in which a first portion of input data is encoded by a first-level code and a second portion of input data is encoded by an second-level code, the second-level code being such that the overall multilevel co... | 02/04/2003 |
| 6512823 | Multiline telephone including interacting call appearances Interacting call appearances are realized by enabling voice input/output to be simultaneously available on any combination of call appearances at a given time on a given terminal. Consequently, a user may, for example, listen to the voice output of one or... | 01/28/2003 |
| 6484276 | Method and apparatus for providing extensible object-oriented fault injection A method and apparatus for a fault injection tool having greater flexibility, ease and portability in realizing the basic functionality of the fault injection. The basic functionality of the fault injection process is abstracted into three base classes, n... | 11/19/2002 |
| 6457142 | Method and apparatus for target application program supervision A fault monitoring, performance monitoring and fault tolerance apparatus and method for target target application programs is realized in an application supervisor by employing a supervisor agent, modified application programming interfaces (APIs), a gene... | 09/24/2002 |
| 6411989 | Apparatus and method for sharing information in simultaneously viewed documents on a communication system Computer users may utilize different web browsers to access a server system on the World Wide Web (WWW) to create or join a collaborative session. One or more controllers connect the users or collaborators in a session in the server system. This is realiz... | 06/25/2002 |
| 6389040 | Apparatus and method for generating a frequency offset estimate for communication systems having frequency selecting fading channels A frequency offset estimation is generated without explicitly generating a channel estimation for a frequency selective fading communication channel. This is realized by recognizing that, in the absence of additive noise, the channel output at a time n de... | 05/14/2002 |
| 5963594 | Vector tracking filter A new filter that may be employed in timing recovery circuits, and automatic gain control circuits, employs a so-called vector tracking filter (VTF). The VTF includes a complex filter with a time constant so long that it might be considered a leaky integr... | 10/05/1999 |
| 5870442 | Timing recovery arrangement Timing recovery circuits, automatic gain control circuits and the like, employ a so-called vector tracking filter (VTF) in conjunction with other timing recovery techniques. The VTF includes a complex filter with a time constant so long that it might be c... | 02/09/1999 |
| 5740257 | Active noise control earpiece being compatible with magnetic coupled hearing aids Active noise control for use by individuals using magnetically coupled hearing aids is realized by generating a true representation of the handset input signal, which is employed to drive a separate external field coil. The external field coil is position... | 04/14/1998 |
| 5696359 | Portable loudspeaker/directional microphone peripheral A loudspeaker system which can be utilized with laptop PCs employs a loudspeaker enclosure having a unique shape which can easily be mounted to the back of a display of the laptop PC and also be easily removed for storing and/or transporting. Additionally... | 12/09/1997 |
| 5673142 | Optical amplifier with internal input signal monitoring tap An optical monitor tap in fiber optical amplifiers is achieved in a configuration with internal input signal monitoring taps, in accordance with the principles of the invention, by placing the tap some distance into the actual optical amplifier active fib... | 09/30/1997 |
| 5673282 | Method and apparatus for monitoring performance of a laser transmitter A low-cost monitor includes two comparators which are adapted to form a window comparator which frames a laser transmitter's normal range of operation. An apparatus for generating an amplified back-face-monitor voltage corresponding to the laser transmitt... | 09/30/1997 |
| 5668841 | Timing recovery for variable bit-rate video on asynchronous transfer mode (ATM) networks The problems associated with slow timing recovery in an ATM receiver are overcome by detecting the transmission rate of a received bit stream and periodically detecting the transmitted Enc-- CR values, which are used to calculate additional est... | 09/16/1997 |
| 5651074 | Noise canceling gradient microphone assembly An improved Broadside SOG microphone assembly is realized by employing a microphone assembly having at least three ports arranged in a non-colinear fashion with the at least three ports defining and being in a "gradient" plane and with both outer adjacent... | 07/22/1997 |
| 5631899 | Acoustic echo canceler Acoustic echos are canceled by employing a first echo canceler having a comparatively short first impulse response synthesis capability which is connected between a transmit path and receive path for generating a first error signal and for canceling echo ... | 05/20/1997 |
| 5627978 | Graphical user interface for multimedia call set-up and call handling in a virtual conference on a desktop computer conferencing system A graphical user interface, i.e., multimedia communications application program, for setting up and handling a multimedia call is disclosed that employs realistic metaphors of real life face-to-meetings in setting up and handling a multimedia call to esta... | 05/06/1997 |
| 5610909 | Multistage echo canceler including time variation compensation Acoustic echos are canceled by employing a first echo canceler having a comparatively long first impulse response synthesis capability which is connected between a transmit path and receive path for generating a first error signal and for canceling echo s... | 03/11/1997 |
| 5610904 | Packet-based telecommunications network A packet-based telecommunications architecture is disclosed that, like virtual-circuit networks, preserves the sequential order in which packets are presented to the network, but does not require node-by-node call set-up or tear-down, unlike virtual-circu... | 03/11/1997 |
| 5574990 | Predistortion technique for communications systems The problem of noise enhancement is eliminated in communications systems by predistorting the amplitude of the transmitted information signal in a manner which compensates for the amplitude distortion introduced in a portion of the communications channel.... | 11/12/1996 |
| 5566167 | Subband echo canceler Failure to cancel echos at frequencies in which the frequency characteristics of sub-band filters in the X and Y analysis filter banks overlag in subband echo cancelers is overcome by employing an X-analysis filter bank in which the pass-band of the subba... | 10/15/1996 |
| 5565924 | Encoder/decoder buffer control for variable bit-rate channel Encoder/decoder buffer overflow and underflow encountered when employing actually variable or effectively variable bit-rate channels for communicating encoded video images and corresponding audio signals are overcome by adjusting the parameters of a video... | 10/15/1996 |
| 5543853 | Encoder/decoder buffer control for variable bit-rate channel Encoder/decoder buffer overflow and underflow encountered when employing actually variable or effectively variable bit-rate channels for communicating encoded video images and corresponding audio signals are overcome by adjusting the parameters of a video... | 08/06/1996 |
| 5539881 | Network element including automatic network element identity information registration apparatus and method In a telecommunications management network including a network element provisioned as a so-called Directory Services Network Element (DSNE) and at least one sub-network intended to include one or more network elements, automatic registration network eleme... | 07/23/1996 |
| 5537547 | Automatic network element identity information distribution apparatus and method In a telecommunications management network including a network element provisioned as a so-called Directory Services Network Element (DSNE) and at least one sub-network intended to include one or more network elements, the DSNE automatically distributes t... | 07/16/1996 |
| 5535198 | ISDN basic rate interface central office station terminal emulator for customer premises equipment Full channel service is obtained over a modified ISDN BRI interface by emulating at least one central office (CO) station terminal which provides access to a voice channel over a single DSL for user station terminals whether or not they are ISDN BRI compa... | 07/09/1996 |
| 5515445 | Long-time balancing of omni microphones The long term average broad band gains of a plurality of individual signal channels, associated with a corresponding plurality of microphone elements, are electronically and dynamically adapted to one another. This is realized by periodically and dynamica... | 05/07/1996 |
| 5506908 | Directional microphone system Full directional pickup coverage is realized by employing a pickup arrangement which provides a plurality of audio polar directivity patterns, i.e., directional beams. These polar directivity patterns are formed in a unique embodiment of the invention by ... | 04/09/1996 |
| 5481596 | Auxiliary baseband telephone interface for an answering machine An auxiliary baseband telephone instrument interface is provided in an answering machine to which any auxiliary telephone instrument, whether corded or cordless, can be connected and can control the answering machine functionality by use of in-band contro... | 01/02/1996 |
| 5457700 | Asynchronous transfer mod (ATM) transmission test cell generator ATM test cells are generated and inserted into an ATM combined data stream in such a manner that a desired average insertion rate is maintained. The desired average insertion rate is obtained by enabling generation of and insertion of test cells into each... | 10/10/1995 |
| 5408463 | Resynchronization of asynchronous transfer mode (ATM) switch fabric In a duplicate active-standby memory unit arrangement, a resynchronization initiation determination is made on a cell-interval-by-cell-interval basis based on the equality of cell contents of corresponding queues in the active and standby memory units. If... | 04/18/1995 |
| 5406549 | Ring interworking between path-switched ring transmission systems The possibility of passing off apparent "good" higher level digital signals that may include corrupted or failed lower level digital signals because of inter-ring grooming of the lower level digital signals from one path-switched ring to another path-swit... | 04/11/1995 |
| 5394389 | Ring interworking between bidirectional line-switched ring transmission systems and path-switched ring transmission systems The possibility of passing off apparent "good" higher level digital signals that may include corrupted or failed lower level digital signals because of inter-ring grooming of the lower level digital signals from a bidirectional line-switched ring to a pat... | 02/28/1995 |
| 5390164 | Ring interworking between bidirectional line-switched ring transmission systems The possibility of passing off apparent "good" higher level digital signals that may include corrupted or failed lower level digital signals because of inter-ring grooming of the lower level digital signals from one bidirectional line-switched ring to ano... | 02/14/1995 |
| 5384774 | Asynchronous transfer mode (ATM) payload synchronizer The requirement of a separate payload clock in an ATM system is eliminated by increasing the number of bytes in an ATM cell and controllably generating and inserting idle cells so that a clock rate equal to that of the incoming SDH, SONET or the like cloc... | 01/24/1995 |
| 5373133 | Equipment unit latch and associated switch An equipment unit latch and an associated switch arrangement are advantageously employed to generate an action initiation signal upon initial movement of the latch toward physically removing the equipment from an equipment frame but prior to any movement ... | 12/13/1994 |
| 5361270 | Apparatus and method employing polarization modulation to reduce effects of polarization hole burning and/or polarization dependent loss The effects of polarization dependent hole burning and/or polarization dependent loss are reduced by modulating the state of polarization (SOP) of an arbitrarily polarized optical signal being launched into the transmission path periodically through a pre... | 11/01/1994 |
| 5359678 | Apparatus and method employing fast polarization modulation to reduce effects of polarization hole burning and/or polarization dependent loss The effects of polarization dependent hole burning and/or polarization dependent loss are reduced by modulating the state of polarization (SOP) of an optical signal being launched into the transmission path periodically between first and second states of ... | 10/25/1994 |
| 5341364 | Distributed switching in bidirectional multiplex section-switched ringtransmission systems Long delays in bidirectional multiplex section-switched self-healing ring transmission systems are avoided by eliminating looping of communications signals when restoring them in response to a failure in the ring and by distributing switching of paths to ... | 08/23/1994 |
