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115results about "Party-line systems" patented technology

Multi-function general purpose transceiver

The present invention is generally directed to a system and associated method for communicating information to a predetermined location. The system includes a transmitter disposed at a first location and configured to transmit a signal containing an instruction code that uniquely identifies an instruction to be carried out. The system further includes a transceiver disposed remotely from the transmitter and configured to receive the transmitted signal. The transceiver circuit includes a line interface circuit configured to interface with a telephone line that is part of the public switched telephone network (PSTN) and initiate a phone call over the telephone line. Finally, the system includes a central station remotely located from said transceiver but being in communication with said transceiver via the PSTN The central station further include a decoder configured to decode the instruction code. In accordance with a broader aspect, the invention is directed to a general purpose transceiver having a receiver for receiving an information signal and a transmitter configured to transmit an outgoing signal over a phone line to a central station A portion of the information signal includes an instruction code, which may be decoded by the central station and acted upon accordingly Consistent with the general purpose nature of the transceiver, the phone number of the central station may be transmitted to the transceiver as part of the information signal.
Owner:STATSIGNAL IPC

Privacy mode system and method for home network telephone

A system and method are provided for controlling communications privacy in a Home Network telephone system. The method comprises: using a gateway to send and receive calls on at least one external telephone line; supplying privacy and public mode bridging options; and, selectively excluding bridges between external telephone lines and a plurality of Home Network endpoints. In response to the privacy mode being selected, the gateway bridges a call between a first external telephone line and a first endpoint, and prevents bridges between the first external telephone line and other endpoints in the system. Alternately, when the public mode is selected, the gateway bridges a call between the first external telephone line and the first endpoint; and permits bridges between the first external telephone line and other endpoints in the system. That is, while the call is bridged to the first endpoint, a bridge is added between the first telephone line and the second endpoint. The privacy and public mode bridging options are selected with respect to nodes. A node can be an external telephone line or an endpoint. That is, a privacy or public mode of operation can be selected for a first external telephone line, whether calls are received or originated through the Home Network telephone system. Likewise, a privacy or public mode of operation can be selected for a particular endpoint, regardless of whether the endpoint receives or originates the call.
Owner:SHARP KK

Method for removing small ring of length 4 in fountain code generated matrix and uses thereof

The invention relates to a method of removing the small ring with the length of 4 in the fountain code generation matrix and the application of the method. The technical proposal is that when the matrix is generated, the generation of the first column is realized that when the value d of an order is selected randomly according to the ordered probability distribution; d positions are selected randomly and a <1> is respectively arranged in the d positions; from the second column, a position is selected randomly and a <1> is arranged in the position after the value d is selected randomly, and then the correlative column which is possible to construct a small ring with the <1> in the second column is located; the correlative column is extracted; a position is selected randomly from the positions which are ensured not to construct a small ring; a <1> is arranged in the position; a <1> is respectively arranged in the other positions in the second column; the other columns are arranged the same as the second column under the situation that the small ring is avoided and a <1> is respectively arranged in the corresponding position. The method of removing the small ring with the length of 4 in the fountain code generation matrix and the application of the method increases the information quantity of the same encoding number; the number of the codes needed to be received for the decoding is reduced; the encoding and decoding performances are improved greatly.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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