A signalling device which is housed within a tubular container includes a mylar balloon; a pressurized, lighter-than-air gas source; and multiple beacon devices. The device signals its location and, as such, is useful in rescue or retrieval operations. A pressure vessel is connected to the balloon so that lighter-than-air gas contained within the pressure vessel can flow into the balloon. An RF transmitter, a Global Positioning System (GPS) receiver unit and a strobe light, are also coupled to t...

The present invention relates to a method and an arrangement for dynamic signalling in a network, such as a Dynamic Synchronous Transfer Mode (DTM) network. The network's bandwidth is divided into cycles, which in turn are divided into control slots for control signalling and data slots for transferring data. Preferably, each or certain nodes have a node controller, which control the access to slots. According to the invention data slots are converted into control slots, called dynamic control s...

The invention relates to a implementing signalling in a telecommunications network, particularly in a mobile network. In the method, one network element (BSC) serves as a master element and several other network elements serve as slave elements (BTS1 . . . BTS4) sending a transmission request for signalling information to the master element which assigns transmission turns in accordance with received transmission requests. The signalling is implemented on a signalling channel common to the slave...

A signaling and/or help request system. A remote transmitter transmits an alarm signal which is received by a receiving/convening device which cooperates with the transmitter. The receiving/conveying device is fitted to a street lamp to transmit a message including an identification code to the electrical supply means. a receiving unit connected to the supply means extracts the messages supplied by the receiving/conveying device and supplies them through a network to a centralized receiver to ge...

An artificial heart assembly may be provided with a blood inlet conduit adapted to be implanted within a subject, a blood outlet conduit adapted to be implanted within the subject, a pumping mechanism implanted within the subject that pumps blood from the blood inlet conduit to the blood outlet conduit, and a motor coupled to drive the pumping mechanism. The artificial heart apparatus has a power source and a control circuit operatively coupled to cause the motor to drive the pumping mechanism i...

A telecommunication system and method of signalling are disclosed which enable service providers to integrate broadband network capability into their existing narrow band networks while being substantially transparent to existing narrow band signalling infrastructures such as the Common Channel Signalling System Number 7 (CCS7), currently in use. Significant advantages are realized through such a network system. Service providers, for example incumbent local exchange carriers (ILECs) now have ac...

A public transportation driver signalling device. The device is comprised of a tubular post member having a removable end cap. A signal light is located within the tubular post member adjacent the end cap. The signal light is preferably a light emitting diode. The light communicates with the exterior of the post through an opening in the post wall. A switch is located within the tubular post member in the lower half thereof. The switch is preferably an intermittent on/off type push button type s...

A human subject signals his personal attitude characteristic to others by placing one of a red cube, yellow sphere or green tetrahedron in a more prominent position that the other objects. The cube and tetrahedron respectively include an upper face and a base with indentations formed as sectors of a sphere having the same radius of curvature as the sphere. The sphere can be stably placed in the cube indentation and the tetrahedron indentation can be stably placed on the sphere.

The present invention relates to a novel human patched-like gene (PTCH2), which for the first time has been cloned and sequenced. Several alternatively spliced mRNA forms of PTCH2 have been identified, including transcripts lacking segments thought to be involved in sonic hedgehog (SHH) binding and mRNAs with differentially defined 3' terminal exons. Further, the invention also relates to the protein encoded by the present PTCH2 as well as to functional analogues and variants thereof.

A visual signalling device, by which to signal for service, includes an elongated cradle with upper and lower ends, the upper end standing on legs to thereby incline the cradle at a tilt angle. The cradle includes a bottom, sidewalls, and a lower endwall. The legs are tapered from top to bottom. The bottom of the cradle is apertured at the tops of the legs to permit stacking of these devices atop on another. The tilt angle is in the range of 25.degree. to 65.degree. from vertical, preferably abo...