Repeated jumping is crucial to the mobility of jumping robots. In this paper, we extend upon the REBOund jumping robot design, an origami-inspired jumping robot that uses the Reconfigurable Expanding Bistable Origami (REBO) pattern as its body. The robot design takes advantage of the pattern's bistability to jump with controllable timing. For jump repeatedly, we also add self-righting legs that utilize a single motor actuation mechanism. We describe a dynamic model that captures the compression of the REBO pattern and the REBOund self-righting process and compared it to the physical robot. Our experiments show that the REBOund is able to successfully self-right and jump repeatedly over tens of jumps.

The complexity of multimedia applications, which integrate a variety of information sources, such as audio, voice, graphics, images, animation, and full-motion video, into a wide range of applications, stresses all the components of computer and communication systems. Many new ideas have been proposed and implemented for advanced LAN (Local Area Network) protocols in order to support multimedia networking. In this paper we study three recently proposed high speed LAN protocols including the 100 Base-T Fast Ethernet, the Ethernet++, and the 100 VG-AnyLAN. We also propose a new enhancement for the 100 VG-AnyLAN. For these four protocol, we describe their design methodology, strengths, weaknesses, and compare their performance in supporting multimedia communications including both real-time and non-real-time traffic. We believe that the results and discussions presented here provide important information for network designers and engineers when designing or deciding network protocols for multimedia systems.