Abstract: A method for secure video surveillance with privacy features includes processing a video stream on a camera device to identify actionable privacy objects (APOs), extracting coordinates associated with the identified APOs to a metadata stream, and masking the identified APOs in the video stream. The video stream and the metadata stream are stored on at least one memory device associated with a remote video management system (VMS) that is communicatively coupled to the camera device. Selected ones of the identified APOs in the video stream are unmasked based on received user credentials, and using the extracted coordinates in the metadata stream, to create a modified video stream. The modified video stream is presented on a remote display device that is communicatively coupled to the remote VMS. A system for secure video surveillance is also provided.

Abstract: A method of ensuring a correct program sequence in a dual-Processor module that includes Processor A and Processor B. Processor A and Processor B are both coupled to a common memory. Processor A and Processor B each execute a first safety program and each generate an instruction stream therefrom. At one or more points in time while running the first safety program, Processor A reads its program counter value from a current instruction being executed and generates therefrom a current Processor A CRC value, and Processor B reading its program counter value from the same current instruction being executed generates therefrom a current Processor B CRC value. Processor A transfers its current CRC value to Processor B and/or Processor B transfers its current CRC value to Processor A, and these CRC values are compared. A safety action is triggered if the comparing determines non-matching current CRC values.

Abstract: A method of ensuring a correct program sequence in a dual-Processor module that includes Processor A and Processor B. Processor A and Processor B are both coupled to a common memory. Processor A and Processor B each execute a first safety program and each generate an instruction stream therefrom. At one or more points in time while running the first safety program, Processor A reads its program counter value from a current instruction being executed and generates therefrom a current Processor A CRC value, and Processor B reading its program counter value from the same current instruction being executed generates therefrom a current Processor B CRC value. Processor A transfers its current CRC value to Processor B and/or Processor B transfers its current CRC value to Processor A, and these CRC values are compared. A safety action is triggered if the comparing determines non-matching current CRC values.

Abstract: A golf club having an elongate member and means associated with the member for producing oppositely directed in line beams of light to indicate to a user of the aid the path being followed by the member. The golf club may be a golf club and the elongate member may be the shaft of the golf club. The beams of light may be produced by two oppositely directed lasers each mounted to the golf club.