Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| RE42714 | Apparatus for voice communications over wired and wireless networks Disclosed is a computer telephony device with a telephone line distribution system. The invention enables simultaneous operations of computer telephony and connected equipment. The connected equipment can be modems, telephones, fax machines, answering machines or an... | 09/20/2011 |
| RE40492 | Power line telephony exchange Method steps and component combinations for establishing a telephony exchange, with benefits of hardwiring, free of a requirement for first installing telephone copper wire service to a concentration of electric power consumers. An operations center for the telephon... | 09/09/2008 |
| 7304500 | Programmable logic module and upgrade method thereof A programmable logic module. In the programmable logic module, a first printed circuit board has a socket and a downloading unit. A field programmable gate array (FPGA) is disposed on the first printed circuit board. A nonvolatile memory stores program codes for pro... | 12/04/2007 |
| 7248565 | Arrangement for managing multiple gateway trunk groups for voice over IP networks An IP-based node in communication with IP-based gateway devices is configured for executing circuit selection for a prescribed trunk group having multiple sets of connected trunk groups, the multiple sets of connected trunk groups managed by the respective IP-based ... | 07/24/2007 |
| 7130408 | Service logic context cache for signaling events A method for sharing signaling event data in a telephony system can include receiving within a first service logic component an event from a telephony signaling network. An event context can be determined for the event and asynchronously stored within an event conte... | 10/31/2006 |
| 7095247 | Configuring FPGAs and the like using one or more serial memory devices The configuration architecture for a programmable device, such as an FPGA, includes one or more memory devices connected directly to the FPGA such that the FPGA can be configured with configuration data stored in the memory devices without transmitting the configura... | 08/22/2006 |
| 7039175 | Configurable digit collection for various signaling protocols A PSTN (Public Switching Telephone Network) device includes a Dynamically Configurable Signaling State Machine (DCSSM). The DCSSM can be programmed to recognize multiple signaling templates. The DCSSM can also be programmed to modify existing recognized standardized... | 05/02/2006 |
| 6894239 | Flip-cover sensor for keypad There is disclosed a keypad apparatus and a method for determining the status of a keypad apparatus. In one embodiment, the keypad apparatus includes a keypad having a plurality of keys and a keypad matrix associated with the keypad and having a switch. The keypad a... | 05/17/2005 |
| 6891947 | Multifunctional analog trunk circuit A multifunctional analog TRK circuit board is designed so as to serve as both loop, ground start, DID, E&M, ring down and both way TRK. Thus, the various analog TRK circuits are embodied in a single TRK board, thereby increasing productivity compared to the conventi... | 05/10/2005 |
| 6826274 | Exchange control method The present invention concerns an exchange control method, wherein an old host exchange accommodating a remote switch unit or subscribers is adapted to be accommodated in a new host exchange, and its object is to allow call processing control to be performed by the ... | 11/30/2004 |
| 6823064 | Enhanced terminal block for readily connecting customers to any of a plurality of telecommunications service providers An improved terminal block includes a first connection mechanism which, when enabled, connects a customer to a first service provider, a second connection mechanism which, when enabled, connects the customer to a second service provider, and an enabling mechanism fo... | 11/23/2004 |
| 6810121 | Common package A common package serves as, for example, a common network interface package for a switching system. Since the common package is usable for various purposes, its cost is reduced and the cost of maintenance and management of the switching system is reduced. The common... | 10/26/2004 |
| 6788782 | Method and apparatus for switching between multiple communication lines Disclosed is an apparatus and method for switching between two network lines, such as telephone subscriber lines. Households and offices are increasingly equipped with multiple network lines for voice and data communications. The line switching unit of the present i... | 09/07/2004 |
| 6782097 | Splitter device for MDU/MTU environments A front access splitter assembly that fully supports lifeline POTS and lifeline ISDN (Integrated Services Digital Network) service requirements is shown and described in this disclosure. ... | 08/24/2004 |
| 6778662 | Point card Disclosed is a computer telephony device with a telephone line distribution system. The invention enables simultaneous operations of computer telephony and connected equipment. The connected equipment can be modems, telephones, fax machines, answering machines or an... | 08/17/2004 |
| 6754730 | Intelligent apparatus for sharing a user I/O interface among all intelligent modules thereof An intelligent apparatus comprises a master module and a plurality of slave modules each having a CPU, a control circuit and an associated software, wherein each of the slave modules is in communication with the master module, and the CPU of the master module may co... | 06/22/2004 |
| 6697893 | Line concentrator with storage function Of the line concentrator with a storage function, an insertion end to be connected to a connecting port and a housing provided with a plurality of connecting ports compose its main body. The housing has therein a serially connected line concentrating circ... | 02/24/2004 |
| 6668058 | Power line telephony exchange Method steps and component combinations for establishing a telephony exchange, with benefits of hardwiring, free of a requirement for first installing telephone copper wire service to a concentration of electric power consumers. An operations center for t... | 12/23/2003 |
| 6577728 | Method of providing continual network access for subscriber communication lines A method for providing automatic restoration of network access for user lines within a communication system. The user lines interface with groups of transmission lines that include dedicated transmission lines which are connected to the user lines, idle t... | 06/10/2003 |
| 6567518 | Method of field programmable gate array configuration A modular digital telephone system and method featuring a universal telephony shelf adaptable for incremental expansion of legacy telephone switches and as a building block in the construction of new telephony switches. The shelf includes identification a... | 05/20/2003 |
| 6542599 | Subscriber system transmission apparatus with line concentrating capability A subscriber system transmission apparatus has a line concentrating capability which is performed a relatively simple efficient redundant structure for increased overall system reliability. A remote terminal has a mode selector for switching between modes... | 04/01/2003 |
| 6519337 | Method for searching trunks in telecommunication N/Ws The present invention relates to a method for searching trunks in exchange systems that a subsystem searches a standby idle trunk for preparing a next trunk usage, stores information of the standby idle trunk and then processes a current call service by c... | 02/11/2003 |
| 6466665 | Method for concentrating subscribers in a local exchange Method for concentrating subscribers in a local exchange (LE), which comprises an exchange terminal (1), a V5 interface (V5) connected to the exchange terminal, a group switch (3) and an interconnecting line (4) between the exchange terminal and the group... | 10/15/2002 |
| 6418219 | Method and device in telecommunications networks An address registration device is used in a telecommunications network in which subscribers are connected to remote subscriber stages, RSSs. The RSSs are connected to local exchanges. The address registration device includes a first table providing inform... | 07/09/2002 |
| 6330329 | Method and apparatus within a switch for performing circular hunts with a window Method and apparatus for performing circular hunts within a switch. Only a limited number of trunk groups are searched in a PSTN switch which has large numbers of trunks available. Additionally, the starting point of the search varies among the trunk grou... | 12/11/2001 |
| 6272217 | Routing call processing communications in a telecommunications system A telecommunications system includes an access terminal coupled to subscriber lines, a local exchange carrier (LEC) network, and a channel unit card coupling the access terminal to the LEC network. The channel unit card includes a processor configured to ... | 08/07/2001 |
| 6160880 | Local number portability service saver Local telephone number portability is effected with automatic changeover of local telephone service for a subscriber station from an incumbent local exchange carrier (ILEC) loop to a competing local exchange carrier (CLEC) loop. A relay device that may be... | 12/12/2000 |
| 6154536 | Order wire accommodation system for interoffice communications An order wire accommodation system comprises four interface boxes each of which has the same order wire interface section as the others. The order wire interface section has a circuit which digitally adds order wire signals of the transmission lines from ... | 11/28/2000 |
| 6047061 | Routing call processing communications in a telecommunications system A telecommunications system includes an access terminal coupled to subscriber lines, a local exchange carrier (LEC) network, and a channel unit card coupling the access terminal to the LEC network. The channel unit card includes a processor configured to ... | 04/04/2000 |
| 6031906 | Digital loop carrier system with automatic reprovisioning of dedicated lines A digital loop carrier system in a communications network that provides automatic restoration of network access for user lines in the event of a failure. The system includes a plurality of user lines and groups of transmission lines interfaced with the us... | 02/29/2000 |
| 5995618 | Method for redirecting traffic on a communications network for conservation of network resources A method of operating a switched communications network redirects certain types of messages away from the switch to free up switch resources for other messages, thereby decreasing the size of switch needed or delaying necessary switch size upgrading. Mess... | 11/30/1999 |
| 5764754 | Subscriber loop reconnection device and method A cutover or reconnection LRD device capable of being remotely controlled has been developed. The cutover or reconnection device consists of a switch under control of a control circuit which can receive tone or other special signals sent remotely, such as... | 06/09/1998 |
| 5568545 | Centralized command system for a telecommunications network A centralized command system for a telecommunications network, in which system a central exchange of a telecommunications network and network elements, such as local concentrators, under its control form an entity which is controllable in a centralized ma... | 10/22/1996 |
| 5533114 | Telecommunication system comprising subscriber connection units having independent routing ability A cellular radiotelephone network including a connection unit having a conventional first No. 7 signalling point for providing conventional control of access to a parent exchange for subscribers connected to connection units by means of signalling message... | 07/02/1996 |
| 5457741 | Subscriber transmission system The arrangement is such that to a transmission apparatus of the subscriber side in a subscriber transmission system wherein the transmission apparatus of the subscriber side which serves a plurality of subscribers and a transmission apparatus connected to... | 10/10/1995 |
| 5455824 | Message information terminating system A message information terminating system in a switching center is connected to a plurality of remote stations by Derived Data Link interfaces and includes transmission lines connected to the same data terminal unit of the switching center, for transmittin... | 10/03/1995 |
| 5347566 | Retrofit subscriber loop carrier system with improved performance monitoring and remote provisioning An improved subscriber line carrier (SLC) with enhanced performance for monitoring and remote provisioning. Communication between the new control unit and new channel units (such as universal remote provisionable channel unit) utilizes a back plane read d... | 09/13/1994 |
| 4924457 | Concentrator system with polling-response means for detecting failures to stop tariff charges on locally established intraoffice calls In a radio concentrator system, a master station and a terminal station cooperate with each other to establish connections between remote subscriber terminals and a public switched network through radio message channels. An intraoffice call is set up betw... | 05/08/1990 |
| 4837810 | Telephone switch center with control of individual devices After connecting a device to the switching device through device-specific connect command and transmission of a start command as well as transmission back of a start command acknowledgement signal, the connect command is partially or slightly changed and ... | 06/06/1989 |
| 4754480 | Circuit arrangement for telecommunication switching systems connected to line concentrator sub-exchanges by connecting channels A concentrator equipped with two processors is connected via two corresponding channel systems to a higher ranking exchange. Both processors operate independently of each other and poll all subscriber line circuits for switching codes. In the event that a... | 06/28/1988 |
