Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 6707797 | Multi-line telephony via network gateways A multi-line telephony system and method deliver multiple concurrent telephone conversations to a customer premise via a single traditional twisted-pair communications connection, and support telephone services via a traditional dial-up connection. Improved packet-b... | 03/16/2004 |
| 6681005 | Device for manufacturing liquid crystal display panel An apparatus for manufacturing a liquid crystal display (LCD) panel with a uniform cell gap includes a pressurized device, a pressure distribution device and provide heat distribution. The pressurized device is used for assembling a first substrate and a ... | 01/20/2004 |
| 6430273 | System and method of providing a bi-directional DSL connection A system for providing a bi-directional digital subscriber line connection to a network includes a digital subscriber line access multiplexer with a pool of digital subscriber line modems, and switching logic connecting customer premises to the modem pool... | 08/06/2002 |
| 6185430 | Voice call group function for a satellite based air traffic control system Voice call group functionality is provided in a satellite based air traffic control system to allow air traffic controllers and pilots of one or more aircraft to establish and maintain voice communication over a group call. A pilot of an aircraft may main... | 02/06/2001 |
| 5822417 | Phone control center for a life safety network There is provided a phone control system for a life safety network which comprises a panel arrangement, a control center module, a loop controller module, a transponder and a remote handset. The panel arrangement has a local rail for receiving a plurality... | 10/13/1998 |
| 5461670 | Telephone subscriber system incorporating a drive interface for a telephone line switch at a different reference potential A telephone subscriber system comprising a speech circuit and a ring circuit adapted to be integrated monolithically to a semiconductor material substrate and being coupled to a telephone subscriber line, respectively through first and second circuit swit... | 10/24/1995 |
| 5182768 | Digital telephone set capable of being simultaneously used by a plurality of persons by using one transmission line In a digital telephone set connected to a digital data exchange through a transmission line, a plurality of handsets, which are mounted on a telephone body, are for converting input sounds into input analog speech signals and for converting output analog ... | 01/26/1993 |
| 4310723 | Party line apparatus Privacy and selective ringing in a two-party line system are implemented by using unidirectional diodes in the speech circuit and the ringer circuit, respectively, of the subscriber instruments. The diodes in the first subscriber instrument are oppositely... | 01/12/1982 |
| 4293738 | Analog access arrangement for a digital telephone office Common digital line circuits are used in a digital telephone office to provide supervisory and digital conversion functions for any subscriber station connected to a digital telephone office. Subscriber stations are connected to specialized analog line ci... | 10/06/1981 |
| 4113985 | Mine dial and page phone system This invention relates to a contemporary paging type telephone for use in coal mines, with an added dial feature to work in conjunction with a local telephone switchboard or central telephone office switchboard. It provides the features of a contemporary ... | 09/12/1978 |
