What does “patents on software as such” (which is currently covered by copyright) have to do with the question that patents blocks independet innovation because software is different from technology?
A software patent monopoly increases costs for independent innovation for software that infringes the software patented idea or might be construed to infringe, or for software that as part of their logical functionality depends on patented ideas. Since this requires licences from the company or court proceedings against the company. The technical field of the proposal is to allow patents on anything that can be run on a computer. Thus ‘other technical fields’ must be something else than ‘can run on computer’, in which case it’s not really relevant for limiting the effects of software patents.