Patent ID: 7552801

Claim:
An elevator system for movement of passengers among respective floors of a building, the elevator system comprising: at least one elevator cab being moveably supported within an elongated vertical passageway, the passageway extending adjacent to a plurality of lobbies, each lobby being located upon a distinct floor of a building, the elevator cab being configured to receive passengers from at least some of the plurality of lobbies; a control system being connected with said elevator cab and being configured to selectively move said elevator cab through said passageway; a display system comprising a plurality of monitor units being disposed in locations visible to elevator passengers, each monitor unit comprising an enclosure, a display screen, a communication port, a power port, a storage device, and a control circuit, the control circuit being electrically connected with each of the display screen, the communication port, the power port, and the storage device, the enclosure supporting each of the display screen, the communication port, the power port, the storage device, and the control circuit, wherein the control circuit does not comprise a general purpose computer and is unable to operate an off-the-shelf operating system; a communications conduit being sequentially connected to the communication port of each of the monitor units, the communications conduit being configured to be selectively connected with a general purpose computer, wherein each of the monitor units is individually addressable over the communications conduit by a general purpose computer for receiving individualized control information and image information from a general purpose computer; wherein the control circuit of each of the monitor units is configured to store the control information and the image information within the storage device, and is further configured to act in accordance with the stored control information to selectively provide at least some of the stored image information to the display screen.