Patents are considered as the most important kind of Intellectual Properties (IPs). The Intellectual Property Rights (IPR) is the logical and legal way of protecting the IPs. Patents and related documents are regarded as the best and rich source of technical and scientific information. In most developing countries, as well as in Iran, the patent information has not found their true operational values. To be able to reach and have access to this information, and consequently assess the state-of-the-art information, a professional searching process should be conducted. It can be showed that patent searching is a professional task and needs experience and skills. This paper discusses the important aspects of the patent documents and the mechanism of skilled searching method, and illustrates examples of searching frameworks for better mining of scientific information.

In this paper, we present a new scheme named advanced spatial modulation for multiple input multiple output (MIMO) systems. Advanced spatial modulation achieves more spectral efficiency than ordinary spatial modulation with using power divider and set the phase of active transmit antennas. Using Power divider enable us to have more than one active antenna in a time slot with only one RF-chain in transmitter. Additionally, we can allocate more spatial bits with map information bits into the phase of the transmit antenna. Then, the performance of the proposed system is simulated and is compared with ordinary spatial modulation and some MIMO techniques such as orthogonal space time block code and V-BLAST.