Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7187651 | Overload reduction in a communication system Reducing overload conditions of a node of communication system comprises storing one or more sets of overload range values, where each set represents a range of used capacity of a component of the node. A rejection proportion value is stored in association with each... | 03/06/2007 |
| 7068766 | Method for preventing overload condition in a circuit switched arrangement Congestion problems in networks are alleviated with a method that works toward insuring that unused capacity will always exist in elements of a network that are resources which are shared by a plurality of users and which, consequently, can be overloaded. In respons... | 06/27/2006 |
| 6594274 | Detection circuit for detecting state of use of B channel and ISDN terminal using the same detection circuit A serial/parallel converter 2--converts a B channel data in an ISDN into an 8-bit parallel data and outputs it to a latch circuit 3. A comparator 4--compares an octet data latched by the latch circuit 3 with a preset idle pattern and, when the octet is di... | 07/15/2003 |
| 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 |
| 6393009 | Method for managing trunk status of a CDMA mobile communication exchange This present invention relates to a method for managing trunk status of a CDMA mobile communication exchange. A CDMA mobile communication exchange according to the present invention has the logical trunk and physical trunks relation to the trunk status, w... | 05/21/2002 |
| 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 |
| 6061429 | Test telephone A test terminal includes a circuit for opening a loop switch to prevent setting up of calls from the terminal via a telephone line when a signal received from the telephone line via a first high-impedance connection exceeds a predetermined threshold indic... | 05/09/2000 |
| 5325426 | Method for overload prevention in a switching center of a communications network Method for overload prevention in a switching center of a communication network. For optimizing the overload prevention of a switching center, the operating personnel assign fixed priority levels bundle-by-bundle to the ports of the trunks. Since this all... | 06/28/1994 |
| 5083308 | Arrangement for determining switch port status at an adjunct processor An arrangement that enables an adjunct processor to determine the service status of switching system communication ports to which the adjunct processor is connected, without reliance on switch-to-adjunct status-conveying messages. In-service and idle ones... | 01/21/1992 |
| 4750202 | Non-blocking concentrator The present invention provides a single stage crossbar and a controller for controlling the crossbar that provides a capacity for "wide-sense non-blocking" connection of input signals to outputs that exceeds the number of outputs to which a given input is... | 06/07/1988 |
| 4590331 | Hostage negotiation telephone system A portable self-contained telephone system for use in hostage negotiation and barricade situations is disclosed. The system is powered by a battery pack or AC power source and provides telephone isolation of the perpetrator. The system can be connected in... | 05/20/1986 |
| 4219700 | Partyline subscriber interface circuit A station set interface circuit for connection to a multi-party line, for prohibiting connection of a party line subscriber's set to the party line in the event the line is in use and for returning busy tone to the subscriber's set. A hookswitch flash by ... | 08/26/1980 |
| 4068101 | Method and apparatus for the automatic communication of two telephone subscribers Automatic communication establishment between two telephone subscribers of different exchanges. The identities of the caller and the called are transferred to the called exchange in the event that the called line is busy, permitting disconnection of the t... | 01/10/1978 |
