Abstract: A method of generating a subscriber line ringing signal includes the step of applying a time-varying waveform W(t) to the tip line while maintaining the ring line at a pre-determined supply level for a duration T/2. The time-varying waveform is subsequently applied to the ring line while maintaining the tip line at the pre-determined supply level for the duration T/2. A subscriber line interface circuit apparatus includes a power supply providing a time-varying supply level, W(t). A signal processor controls a linefeed driver to alternately couple W(t) to one of the tip and ring lines while coupling an alternate supply level to the other of the tip and ring lines for a duration T/2. In various embodiments, the resulting differential ringing signal is trapezoidal or sinusoidal.

Abstract: A method of generating a subscriber line differential ringing signal with a DC component includes providing a time-varying supply level, W(t), having a plurality of non-equidistantly spaced critical points along a folding line. W(t) is coupled to the tip line while coupling an alternate source to the ring line in response to a first critical point. W(t) is coupled to the ring line while coupling the alternate source to the tip line in response to a second critical point. An apparatus for generating the ringing signal includes a power supply providing a supply level W(t)=|f(t)?C|+C+D, wherein D is a power supply offset, wherein C?0. When W(t)?K a signal processor controls a linefeed driver to toggle between 1) coupling W(t) to the tip line while coupling the ring line to an alternate supply, VALT(t), and 2) coupling W(t) to the ring line while coupling the tip line to VALT(t), wherein K is a pre-determined switching threshold.

Abstract: A power offload network has a node for receiving at least one supply V1. The power offload network includes at least one switch and a power offload element providing a supply drop of VR. The switch is configurable for selecting a linefeed supply level from the set including {V1, V1?VR}. A subscriber line interface circuit receives the selected linefeed supply level for driving a subscriber line.

Abstract: A power offload network has a first node for receiving a first supply V1 and a second node for receiving a second supply V2. The power offload network includes a plurality of switches and a power offload element providing a supply drop of VR. The switches are configurable for selecting a linefeed supply level from the set including {V1, V2, V1?VR, V2?VR}. A subscriber line interface circuit receives the selected linefeed supply level for driving a subscriber line.

Abstract: An apparatus for powering a plurality of devices sharing a supply line includes a supply control and a variable supply associated with the supply line. The supply control varies the supply level of the supply line to accommodate the supply level request representing a greatest magnitude supply level of any requests communicated from the devices. Another apparatus includes a plurality of supply controls each coupled to control a supply level provided by an associated supply line. Each device is capable of selectively coupling itself to an exclusive one of the supply lines. At least one device communicates a supply level request to a selected supply control that adjusts the supply level of its associated supply line to accommodate the supply level request representing the greatest supply level magnitude of any other supply level requests. If necessary, the selected device switches to the supply line associated with the selected supply control.

Abstract: A Medical Waste Segregation Apparatus and Method for segregating medical waste at the point of disposal within a medical facility in preparation for further segregated disposal outside the facility. The medical waste device is divided in half by a vertical plane extending through the mid point thereof and with color coding; i.e., one half red and one half neutral, for easy recognition by busy medical staff to deposit red medical waste in the red sector at the point of generation of such waste, whereby cost savings are available for recyclable general waste in the form of cost avoidance as well as seeking to eliminate commingling of general waste inadvertently with medical waste, to achieve decreased disposal cost and increased opportunity for cost avoidance.

Abstract: A Medical Waste Segregation Apparatus and Method for segregating medical waste at the point of disposal within a medical facility in preparation for further segregated disposal outside the facility. The medical waste device is divided in half by a vertical plane extending through the mid point thereof and with color coding; i.e., one half red and one half neutral, for easy recognition by busy medical staff to deposit red medical waste in the red sector at the point of generation of such waste, whereby cost savings are available for recyclable general waste in the form of cost avoidance as well as seeking to eliminate commingling of general waste inadvertently with medical waste, to achieve decreased disposal cost and increased opportunity for cost avoidance.