Oscilloscopes from ZLG seem to decode a boatload of protocols (copied from their website):
ZDS2022: IIC,SPI,UART,USB,SD,CAN,LIN,FlexRay,1-Wire,PS/2,HDQ,Wiegand,DALI,DS18B20,SSI,IRDA,NEC,RC-5,RC-6,MANCHESTER,MILLER
ZDS2024 Plus: (close to US $3000) CAN,LIN,I2C,SPI,UART,USB,PS/2,DALI,Wiegand,1-Wire,DS18B20,HDQ, SD_SPI,SD_SD,IrDA,Manchester,DiffManchester,Miller,DHT11, SHT11, NEC,RC5,RC6,FlexRay,CAN FD