Signal processing device and vehicle display apparatus including the same

A signal processing device comprising a plurality of processor cores,

• wherein at least some of the plurality of processor cores are configured to execute a hypervisor,
• wherein the hypervisor is configured to execute a plurality of virtual machines,
• wherein a first virtual machine among the plurality of virtual machines is configured to execute a first application corresponding to a first safety level or a microservice corresponding to the first application on a first operating system corresponding to the first safety level, before mode switching, and
• wherein in response to a request for executing a second application corresponding to a second safety level higher than the first safety level or a microservice corresponding to the second application, the first virtual machine is configured to perform the mode switching and execute the second application or the microservice corresponding to the second application on a second operating system corresponding to the second safety level,
• wherein some among the plurality of processor cores is configured to execute an application corresponding to the second safety level or a microservice corresponding to the application corresponding to the second safety level on a third operating system corresponding to the second safety level,
• wherein another processor core among the plurality of processor cores is configured to execute an application corresponding to a third safety level or a microservice corresponding to the application corresponding to the third safety level on a fourth operating system corresponding to the third safety level lower than the first safety level.

A vehicle display apparatus comprising:

• at least one display;
• and
• a signal processing device configured to output an image signal to the display,
• wherein the signal processing device comprises a plurality of processor cores,
• wherein a first processor core among the plurality of processor cores is configured to execute a first application corresponding to a first safety level or a microservice corresponding to the first application on a first operating system corresponding to the first safety level, perform mode switching with a second processor core among the plurality of processor cores, and execute a second application corresponding to a second safety level higher than the first safety level or a microservice corresponding to the second application on a second operating system corresponding to the second safety level,
• wherein some among the plurality of processor cores is configured to execute an application corresponding to the second safety level or a microservice corresponding to the application corresponding to the second safety level on a third operating system corresponding to the second safety level,
• wherein another processor core among the plurality of processor cores is configured to execute an application corresponding to a third safety level or a microservice corresponding to the application corresponding to the third safety level on a fourth operating system corresponding to the third safety level lower than the first safety level.