The Japanese Patent Office recently passed a new by SONY to apply for patents, according to the official public documents, SONY's new patent may indicate the PS5 will support backward compatibility. The patent allows devices to the CPU is testing it is reading software for the current or past hardware design, if the test result is the latter, the device can simulate the old hardware CPU, this software can run smoothly. The patent content does sound like a new host in the simulation of the old host hardware environment, so as to realize the function of downward compatible with previous host game. It is worth mentioning that the patent is the inventor of the Mark Cerny, he is one of the main designers of PS4, so also is likely to be involved in designing PS5, but SONY is not disclose any information. Patent pages also show SONY in 2017 on January 20, submit the application, if it really is associated with PS5, can only say that SONY in backward compatibility on this layout is already a long time.