Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8078051 | Method and system for a secure bi-directional line switched ring A method or system including implementing one or more indicators to specify traffic ordering associated with an optical networking protocol and ordering traffic according to the one or more indicators. ... | 12/13/2011 |
| 7787765 | Method and apparatus device for initializing an end-to-end link in a fiber optic communications system A method and apparatus for initializing an end-to-end link in a fiber optic communications system in which a pair of nodes interconnect a pair of end devices. A first node, upon initializing a device link segment with an end device to which the node is coupled, send... | 08/31/2010 |
| 7346277 | Joint-layer restoration in packet-over-optical networks A joint “packet-optical” layer restoration mechanism protects against single, packet-layer router failures by managing network resources from both the packet layer and the optical transport layer in a synergistic manner. It reuses packet-layer router service-por... | 03/18/2008 |
| 7092629 | Time-division and wave-division multiplexed link for use in a service area network A data transmission system employs a method of aligning transmission lanes with reception lanes in a multiplexing arrangement. A plurality of control symbols and lane identifiers are transmitted on each of the transmission lanes. The transmission lanes are divided i... | 08/15/2006 |
| 6823137 | Optical line protection device and optical line protection method To provide a system in which a configuration is simple and a switching of an optical line can be performed at a high speed. A protection unit for performing optical line protection by using K1-K2 information inserted into a payload is provided for each physical inte... | 11/23/2004 |
| 6785023 | Network facsimile apparatus The network facsimile apparatus switches a status icon registered in a structured document for displaying a status icon, corresponding to a status change, while transmitting the structured document corresponding to a request from a client. Thus the apparatus enables... | 08/31/2004 |
| 6778781 | Health check algorithm for protection circuit in optical network An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit via a working optical fiber, (2) a protection OSU of a protection circuit via a protection optical fiber, and (3) one or more optical network ter... | 08/17/2004 |
| 6771908 | Fast protection switching by snooping on downstream signals in an optical network An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit, (2) a protection OSU of a protection circuit, and (3) one or more optical network terminals (ONTs), where an ONT has (i) a working line terminat... | 08/03/2004 |
| 6288806 | Optical subscriber network system and fault supervising method for optical subscriber network system The invention provides an optical subscriber network system which can secure dual construction of optical transmission/reception sections of optical network units, specification of a failed faulty point in optical transmission lines and reception circuits... | 09/11/2001 |
| 6097696 | Optical layer quasi-centralized restoration A wavelength-switching, mesh-based restoration method among a network of optical cross-connects (OXCs) is disclosed. The method is defined as "quasi-centralized" in that the network is first partitioned into a plurality of subnetworks, then a single "rest... | 08/01/2000 |
| 5539564 | Point-to-multipoint optical transmission system A point-to-multipoint communication system is presented to enable a reliable, high quality communication using multiplexed optical signals between a central office equipment and a plurality of subscriber's equipment. The system is provided with a pluralit... | 07/23/1996 |
| 5537241 | Telecommunications system Error-free or rapid protection switching between two basestations, one main and one standby, or two transmitters (1,2) etc. of one basestation (8) is achieved using a downstream marshalling scheme involving the transmission of a sequence from the standby ... | 07/16/1996 |
| 5357360 | Optical data network having adjustable delays for switching over to backup unit An optical data network, in which data is exchanged between an active central unit (CU1) and subscriber line units (DU1, DU2, DU3, . . .) using the time-division multiplexing method. The reliability is considerably enhanced by parallel connection of a bac... | 10/18/1994 |
| 4567586 | Service integrated digital transmission system In a service integrated, time multiplex digital signal transmission system for transmitting narrowband and broadband signals between a central exchange terminal and a subscriber terminal, which system includes a light conductor path connected between the ... | 01/28/1986 |
