Nevada City-based Sierra Video Systems announced Wednesday it has been bought by Kramer Electronics Company. The acquisition is not expected to interrupt business at Sierra Video Systems or have a negative impact on local jobs.Sierra Video Systems, founded in 1984, specializes in the design, manufacture and distribution of high-quality video and audio routing switchers for the professional AV, broadcast, government and presentation marketplaces.The sale is anticipated to boost Israel-based Kramer Electronics' line of video products, including high-end routing switchers, while allowing Sierra Video Systems access to Kramer's extensive worldwide sales channels. The new company will operate as Sierra Video Systems, …