# US 2014/0192268 A1 · Personal Interactive Overhead Projection Inflight Entertainment System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192268 A1 - Document ID: US20140192268A1 - Status: Published application - Kind: A1 - Application number: 13/735,526 - Filed: 2013-01-07 - Published: 2014-07-10 - Earliest claimed: 2013-01-07 - Assignees: Lumexis Corporation - Inventors: Gregory C. Petrisor - Web page: https://patentgrep.com/patent/US20140192268A1 ## CPC - G03B 21/147: {Optical correction of image distortions, e.g. keystone} - B60Q 3/233: Seats; Arm rests; Head rests - B60Q 3/44: Spotlighting, e.g. reading lamps - G03B 33/10: Simultaneous recording or projection (G03B33/02, G03B33/04 G03B33/06 take precedence) - G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)} - H04N 9/3194: {including sensor feedback} - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract In a personal interactive overhead projection IFE system, an overhead projector associated with a passenger's seat projects video onto a passive substrate attached to the seat. The passive substrate may be a tray table or a dedicated video projection screen. The passenger sitting in the seat controls the projected video by positioning his or her finger or making hand gestures proximate the passive substrate. An overhead camera records the hand actions. An overhead processor interprets the hand actions and controls the projected video based on the hand actions. The system provides highly desirable personal and interactive features while obviating the need for seatback video display units or passenger control units. ## Claims ### Claim 1 A personal interactive overhead projection inflight entertainment system, comprising: a passive seatback mounted substrate; and an overhead projector configured to project video onto the substrate. ### Claim 2 (depends on 1) The system of claim 1, wherein the substrate is a tray table. ### Claim 3 (depends on 1) The system of claim 1, wherein the substrate is a dedicated video projection screen. ### Claim 4 (depends on 1) The system of claim 1, wherein a passenger controls the projected video at least in part by hand actions on or over designated areas of the projected video proximate the substrate. ### Claim 5 (depends on 4) The system of claim 4, further comprising an overhead processor configured to interpret the hand actions and control the projected video based at least in part on the hand actions. ### Claim 6 (depends on 4) The system of claim 4, further comprising an overhead camera configured to record the hand actions. ### Claim 7 (depends on 6) The system of claim 6, wherein the overhead camera is a visible spectrum camera. ### Claim 8 (depends on 6) The system of claim 6, wherein the overhead camera is an infrared camera. ### Claim 9 (depends on 1) The system of claim 1, wherein the overhead projector doubles as an overhead reading light. ### Claim 10 (depends on 9) The system of claim 9, further comprising a switch configured to allow a passenger to transition the overhead projector between an overhead video projection function and an overhead reading light function. ### Claim 11 (depends on 1) The system of claim 1, further comprising an overhead processor configured to distort the projected video. ### Claim 12 (depends on 11) The system of claim 11, wherein the overhead processor is configured apply a dynamic distortion to the projected video based at least in part on a recorded position of the substrate. ### Claim 13 (depends on 12) The system of claim 12, further comprising an overhead camera configured to record the position of the substrate. ### Claim 14 (depends on 1) The system of claim 1, further comprising an overhead processor configured to size the projected video. ### Claim 15 (depends on 14) The system of claim 14, wherein the overhead processor is configured to apply a dynamic size to the projected video based at least in part on a recorded position of the substrate. ### Claim 16 (depends on 15) The system of claim 15, further comprising an overhead camera configured to record the position of the substrate. ### Claim 17 (depends on 1) The system of claim 1, further comprising an overhead processor configured to apply a dynamic size to the projected video based at least in part on recorded cabin lighting. ### Claim 18 (depends on 17) The system of claim 17, further comprising an overhead camera configured to record cabin lighting. ### Claim 19 (depends on 2) The system of claim 2, wherein the tray table is equipped with a cover. ### Claim 20 (depends on 2) The system of claim 2, wherein the tray table is equipped with side flaps. ### Claim 21 (depends on 1) The system of claim 1, further comprising an overhead audio interface configured to output synchronous audio for the projected video. ### Claim 22 (depends on 1) The system of claim 1, wherein the overhead projector comprises a multiple of overhead projectors and the substrate is a single substrate. ### Claim 23 (depends on 22) The system of claim 22, further comprising an overhead processor configured to polarize output of each of the overhead projectors to orthogonal polarization for three dimensional viewing. ### Claim 24 A method for providing inflight entertainment, comprising: mounting a passive substrate to a seatback on an aircraft; mounting an overhead projector to an overhead section of the aircraft; and projecting video from the overhead projector onto the substrate. ### Claim 25 (depends on 24) The method of claim 24, wherein the substrate is a tray table. ### Claim 26 (depends on 24) The method of claim 24, wherein the substrate is a dedicated video projection screen.