Television telephone

• US 5,396,269 A
• Filed: 02/20/1992
• Issued: 03/07/1995
• Est. Priority Date: 02/20/1991
• Status: Expired due to Term

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Takahashi, Masahiro, Gotoh, Hiroshi, Takizawa, Masaaki, Ishida, Kiyoshi, Shibata, Yoji, Yokoi, Kenji, Furuya, Jun, Ishinabe, Iwao, Watanuki, Toshiaki, Mikamo, Katsumi, Matsubayashi, Yoshinobu, Yoshimaru, Takushi
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): Woo, Stella L.
• Application Number:
  US07/838,348
• Time in Patent Office: 1,111 Days
• Field of Search: 379/53, 379/96, 379/94, 379/93, 358/85
• US Class Current: 348/14.04
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 7/141 between two video terminals, e.g. videophone telephonic communication systems combined with television receiver for reception of entertainment or information matter H04M11/085
• CPC Class Codes: H04N 7/142 Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q
• CPC Class Codes: H04N 7/148 Interfacing a video terminal to a particular transmission medium, e.g. ISDN
• CPC Class Codes: H04Q 11/0457 Connection protocols
• CPC Class Codes: H04Q 11/0471 Terminal access circuits
• CPC Class Codes: H04Q 2213/13034 A/D conversion, code compression/expansion
• CPC Class Codes: H04Q 2213/13091 CLI, identification of calling line
• CPC Class Codes: H04Q 2213/13096 Digital apparatus individually associated with a subscriber line, digital line circuits
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/13106 Microprocessor, CPU
• CPC Class Codes: H04Q 2213/13175 Graphical user interface [GUI], WWW interface, visual indication
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/13179 Fax, still picture
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/1332 Logic circuits
• CPC Class Codes: H04Q 2213/13337 Picturephone, videotelephony
• CPC Class Codes: H04Q 2213/204 ISDN protocol; ISO 7
• CPC Class Codes: H04Q 2213/337 : Picturephone

Abstract

A television telephone including a movable head section, a support section and a bottom section. The movable head section includes an imaging device for inputting images and a display for displaying images. The bottom section includes a communication controller for transmission and reception of encoded information of at least one of audio and visual signals to and from a communication network, and a telephone controller for controlling transmission and reception functions and including a key console unit. The support section serves for connecting the bottom section and the movable head section and for supporting the movable head section and includes an image encoder/decoder for encoding image input signals and for decoding received image signals.

Claims

1. A television telephone comprising:

a movable head section including image input means for inputting images and display means for displaying images;

a bottom section including communication control means for transmission and reception of encoded information of at least one of audio and visual signals to and from a communication network, and telephone control means for controlling transmission and reception functions and including a key console unit; and

a support section for connecting the bottom section and the movable head section and for supporting the movable head section, the support section including image encoder/decoder means for encoding image input signals and for decoding received image signals.

2. A television telephone according to claim 1, wherein the movable head section, the bottom section and the support section form an integrated construction.

3. A television telephone according to claim 1, wherein the support section extends transversely to the bottom section so that the television telephone has an L-shaped configuration.

4. A television telephone according to claim 1, wherein the support section and movable head section are arranged for removable coupling to the bottom section so that the bottom section, when the support section and movable head section are not coupled thereto, operates solely as a digital telephone.

5. A television telephone according to claim 1, wherein the communication control means of the bottom section includes means for multiplexing of audio signals, visual signals and data signals for transmission to the communication network and means for demultiplexing multiplex received encoded information from the communication network.

6. A television telephone according to claim 1, wherein the support section is provided with ventilation openings enabling natural circulation cooling of the image encoder/decoder means.

7. A television telephone according to claim 1, wherein the movable head section is connected with the support section for enabling movement with respect thereto.

8. A television telephone according to claim 7, wherein the support section is connectable with the bottom section and arranged for movement with respect thereto.

9. A television telephone according to claim 1, wherein the image input means of the movable head section includes a camera unit for inputting moving picture images and still picture images including document and photographic images.

10. A television telephone according to claim 9, wherein the camera unit includes means for positioning the camera unit so as to look downwardly independently of the position of the display means, the camera unit in the looking downward position enabling inputting information of documents.

11. A television telephone according to claim 10, further comprising means responsive to the looking downward position of the camera unit for automatically transforming the image inputted by the camera unit in point symmetry rotated by 180°

and for enabling transmission of the transformed image signal for display.

12. A television telephone according to claim 10, wherein the bottom section includes an upper surface for supporting documents thereon, the camera unit in the looking downward position thereof enabling inputting information of the documents supported on the bottom section.

13. A television telephone according to claim 1, wherein the display means includes means for enabling at least one of monitor display of image input signals and display of received image signals.

14. A television telephone according to claim 13, wherein the display means provides color moving picture display.

15. A television telephone according to claim 13, wherein the display means includes a liquid crystal display.

16. A television telephone according to claim 13, wherein the display means includes simultaneous display of image input signals at one portion of a screen thereof and received image signals at another portion thereof as a picture-in-picture display.

17. A television telephone according to claim 16, wherein the key console unit includes a plurality of keys, at least one of the keys enabling display.

18. A television telephone according to claim 13, further comprising means for providing at least one of indication of guidance information of television telephone operation, advice information and input confirmation indication for display on the display means.

19. A television telephone according to claim 18, wherein the indication includes icon and characteristic indication.

20. A television telephone according to claim 18, wherein the display means enable superposition of at least one of the guidance information, advice information and input confirmation information in superposition on the image signal for display.

21. A television telephone according to claim 1, wherein the movable head section, bottom section, and support section are separate units connectable to one another, the movable head section being movable with respect to the support section.

22. A television telephone according to claim 21, wherein the image encoder/decoder means includes a picture codec unit.

23. A television telephone comprising:

communication control means for transmitting and receiving digital encoded information of at least one of audio signals, visual signals and data signals to and from a communication network including means for multiplexing the transmitted digital encoded information and demultiplexing the received digital encoded information;

internal audio and visual input/output means including visual input means for inputting images, display means for displaying images, and telephone control means for controlling transmission/reception functions thereof;

external input/output terminal connection control means for enabling operation in cooperation with external equipment including at least one of audio, visual and data equipment, the external input/output terminal connection control means being mounted on a rear surface of a bottom section of the television telephone; and

key operation selecting control means for controlling connection with the communication control means and for effecting selective switching between the internal audio and visual input/output means and the external input/output terminal connection control means;

wherein the external input/output terminal connection control means includes a plurality of terminal connections which are integrated on the rear surface of the bottom section of the television telephone.

24. A television telephone according to claim 23, wherein the key operation selecting control means includes a key console unit having a plurality of keys, respective ones of the keys enabling predetermined switching operations.

25. A television telephone according to claim 24, wherein at least one of the keys of the key console unit controls outward transmission of the visual signal from the television telephone.

26. A television telephone according to claim 23, wherein the communication control means is disposed in a bottom section together with the external input/output terminal connection control means and the key operation selecting control means, the visual input means and the display means being disposed in a movable head section, and image encoder/decoder means for encoding image input signals and for decoding received image signal being disposed in a support section connecting the bottom section and the movable head section.

27. A television telephone according to claim 26, wherein the bottom section, the support section and the movable head section are separate units connectable to one another, the movable head section being arranged for movement with respect to the support section, and the image encoder/decoder means disposed in the support section including a picture codec unit.

28. A television telephone according to claim 23, wherein the plurality of terminal connections of the external input/output terminal connection control means include a serial data input/output terminal connection and a parallel data input/output terminal mounted on the rear surface of the bottom section of the television telephone and disposed between a substrate of the communication control means and a substrate of the internal audio and visual input/output means.

29. A television telephone according to claim 28, wherein the plurality of terminal connections of the external input/output terminal connection control means further include a power input terminal connection, a voice input terminal connection, a voice output terminal connection, an image input terminal connection, an image output terminal connection and an interface terminal connection mounted on the rear surface of the bottom section of the television telephone and disposed between the substrate of the communication control means and the substrate of the internal audio and visual input/output means.

30. A television telephone comprising:

image input means for inputting at least one of a moving picture image and a still picture image;

display means for displaying image signals;

communication control means for transmitting and receiving encoded information of audio and visual signals in a plurality of transmission modes to and from a communication network, the communication control means including means for multiplexing the encoded information and for demultiplexing the received encoded information;

telephone control means for controlling the transmission/reception functions and including a key console unit;

image encoding/decoding means including an image encoder circuit for encoding image input signals and an image decoder circuit for decoding received image signals; and

mode control means for enabling transmitted and received images in a predetermined transmission of images of at least one of moving picture, animation, still pictures, photographs and drawings, the mode control means providing position responsive attitude control for the image input means for enabling transformation of an inputted image in point symmetry rotated by 180°

by controlling a direction of read out of the input image signals from a frame memory and transmission of the transformed image and being responsive to key operation of the key console unit.

31. A television telephone according to claim 30, wherein the key console unit includes a plurality of keys, respective ones of the keys enabling predetermined operations.

32. A television telephone according to claim 31, wherein at least one of the keys of the key console unit controls outward transmission of the visual signal from the television telephone.

33. A television telephone according to claim 30, wherein the communication control means is disposed in a bottom section together with the telephone control means and mode control means, the image input means and the display means being disposed in a movable head section, and the image encoding/decoding means being disposed in a support section connecting the bottom section and the movable head section.

34. A television telephone according to claim 33, wherein the bottom section, the support section and the movable head section are separate unit connectable to one another, the movable head section being arranged for movement with respect to the support section, and the image encoder/decoder means disposed in the support section including a picture codec unit.

35. A television telephone according to claim 30, wherein the display means is responsive to the transformed image for displaying the transformed image for monitoring purposes as a picture-in-picture on a display screen thereof.

36. A television telephone comprising:

image input means for inputting at least one of a moving picture image and still picture image;

display means for displaying image signals on at least one of a plurality of screens such that different images from respective ones of the screens are enabled to be viewed in at least one different portions of a viewable screen and in superposed relation on the viewable screen;

communication control means for multiplexing encoded information of audio and visual signals in different communication modes and enabling transmission of the encoded information to a communication network and receipt of encoded information from the communication network, the communication control means enabling demultiplexing of the received encoded information;

image encoding/decoding means including an image encoder circuit for encoding image input signals and in image decoder circuit for decoding received image signals; and

image control means for enabling images inputted through the image input means to be displayed for monitoring purposes with respect to outgoing transmission images thereof on one of the screens of the display means together with images received through the image decoder circuit, the image control means enabling control of outgoing images for transmission and interruption thereof in response to key operation of the key console unit, the image control means enabling input images to be transformed in point symmetry rotated by 180° and

transmission of the transformed images so that the transformed images are displayed on the viewable screen of the display mean for monitoring purposes as a picture-in-picture display.

37. A television telephone according to claim 36, wherein the key console unit includes a plurality of keys, respective ones of the keys enabling predetermined operations.

38. A television telephone according to claim 36, wherein the communication control means is disposed in a bottom section together with a telephone control means and the image control means, the image input means and the display means being disposed in a movable head section, and the image encoding/decoding means being disposed in a support section connecting the bottom section and the movable head section.

39. A television telephone according to claim 38, wherein the bottom section, the support section and the movable head section are separate unit connectable to one another, the movable head section being arranged for movement with respect to the support section, and the image encoder/decoder means disposed in the support section including a picture codec unit.

40. A television telephone according to claim 36, wherein the image input means includes a frame memory for storing image signals written therein in a predetermined sequence, the image control means enabling reading out of the image signals from the frame memory in a different sequence to the writing in predetermined sequence thereof so as to transform the images in point symmetry rotated by 180°

.