Multiangle block reproduction system

• US 5,999,698 A
• Filed: 09/30/1997
• Issued: 12/07/1999
• Est. Priority Date: 09/30/1996
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Hagio, Takeshi, Nakai, Masatoshi
• Primary Examiner(s): Tran, Thai
• Assistant Examiner(s): ONUAKU, CHRISTOPHER O
• Application Number:
  US08/941,080
• Time in Patent Office: 798 Days
• Field of Search: 386/45, 386/125, 386/126, 386/46, 348/7, 348/13, 348/734
• US Class Current: 386/230
• CPC Class Codes: G11B 19/02 Control of operating function, e.g. switching from recording to reproducing
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/002 Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing; transfer of record carriers from magazine G11B15/68, G11B17/10; G11B17/22
• CPC Class Codes: G11B 27/007 reproducing continuously a part of the information, i.e. repeating
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 21/21805 enabling multiple viewpoints, e.g. using a plurality of cameras
• CPC Class Codes: H04N 21/25866 Management of end-user data customer care in data networks H04L41/5077
• CPC Class Codes: H04N 21/4143 embedded in a Personal Computer [PC]
• CPC Class Codes: H04N 21/42204 User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor constructive details of casings for the remote control device H01H9/0235; user interfaces for controlling a tuning device of a television receiver through a remote control H03J9/00; remote control of peripheral devices connected to a television receiver through the remote control device of the television receiver H04B1/205
• CPC Class Codes: H04N 21/4221 Dedicated function buttons, e.g. for the control of an EPG, subtitles, aspect ratio, picture-in-picture or teletext
• CPC Class Codes: H04N 21/42646 for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
• CPC Class Codes: H04N 21/42676 for modulating an analogue carrier signal to encode digital information or demodulating it to decode digital information, e.g. ADSL or cable modem
• CPC Class Codes: H04N 21/4312 involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
• CPC Class Codes: H04N 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/6118 : involving cable transmission, e.g. using a cable modem
• CPC Class Codes: H04N 21/6187 : involving transmission via a telephone network, e.g. POTS
• CPC Class Codes: H04N 5/775 : between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/85 : on discs or drums
• CPC Class Codes: H04N 9/8042 : involving data reduction
• CPC Class Codes: H04N 9/8063 : using time division multiplex of the PCM audio and PCM video signals
• CPC Class Codes: H04N 9/8227 : the additional signal being at least another television signal

Abstract

In reproduction of a predetermined title recorded on an optical disk, when multiangle video images are recorded on the optical disk, an angle mark having a form of a camera is turned on. During reproduction of this title, when reproduction reaches a multiangle video image recorded portion, the angle mark flashes so that a viewer or user of the video can be notified of a state in which video reproduction at an angle different from that of the currently reproduced video image is possible.

Claims

1. A system capable of selectively reproducing a plurality of images recorded in an angle block of a recording medium having a format with which a set of a plurality of images obtained by photographing or imaging a photographic target at a variety of camera angles can be recorded in the form of the angle block, wherein

when the recording medium on which a program source containing the angle block is recorded is set, an angle mark notifying a "program source with an angle block" is turned on, and

when a portion of the angle block of the program source is set while reproducing the image, the angle mark notifying that a "change in angle is possible" is flickered, modified, or changed in color.

2. A remote controller used for said multiangle block reproduction system of claim 1, comprising an angle key to send an angle change instruction to said reproduction system when the angle mark is flickered, modified, or changed in color.

3. A remote controller used for said multiangle block reproduction system of claim 1, comprising an angle mark ON/OFF key to selectively set the ON state of the angle mark to an ON/OFF state when the angle mark is set in an ON state.

4. A remote controller used for said multiangle block reproduction system of claim 1, comprising a display for displaying the angle mark.

5. A remote controller used for said multiangle block reproduction system of claim 1, wherein said angle mark has a shape for illustrating a camera angle direction.

6. A multiangle block reproduction system of claim 1, wherein said system comprises a display window having the angle mark, and the angle mark displayed in the display window has a shape for illustrating a camera angle direction.

7. A remote controller used for said multiangle block reproduction system of claim 1, wherein said remote controller includes a key for changing an angle number contained in the angle block.

8. A multiangle block reproduction system according to claim 1, comprising means for displaying an angle number contained in the angle block.

9. A multiangle block reproduction system according to claim 1, comprising means for displaying an angle number of the angle block under reproduction.

10. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles, and

said reproduction apparatus comprises an angle mark for notifying the presence of the angle cell, and means for checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark.

11. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles, and

said reproduction apparatus comprises an angle mark for notifying the presence of the angle cell, first means for checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark, and second means for, when the angle count represents only one angle, turning off the angle mark.

12. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles, and

said reproduction apparatus comprises an angle mark for notifying the presence of the angle cell, first means for checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark, second means for, when the angle count represents only one angle, turning off the angle mark, and third means for, even when the angle count represents the plurality of angles, forcibly turning off the angle mark.

13. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles, and

said reproduction apparatus comprises

an angle mark for notifying the presence of the angle cell,

first means for checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark,

second means for, when the angle count represents only one angle, turning off the angle mark,

third means for, even when the angle count represents the plurality of angles, turning on or off the angle mark, and

a remote controller having an angle mark ON/OFF key for instructing an ON/OFF operation of the angle mark to said third means.

14. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video title set of the disk-like recording medium contains at least one video object set, the video object set contains at least one video object, the video object contains at least one cell including the angle cell, said cell contains at least one video object unit, each of said at least one video object unit contains a navigation pack at a head thereof, the navigation pack contains presentation control information, and the presentation control information contains nonseamless angle information having address data of each angle cell, and

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles,

said reproduction apparatus comprises

an angle mark notifying the presence of the angle block,

first means for checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark, and

second means for, when the angle count represents the plurality of angles, referring to the address data of each angle cell, returning to another angle cell different from the angle cell under reproduction along a reproduction time axis, and nonseamlessly switching the reproduction target.

15. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video title set of the disk-like recording medium contains at least one video object set, the video object set contains at least one video object, the video object contains at least one cell including the angle cell, said cell contains at least one video object unit, each of said at least one video object unit contains a navigation pack at a head thereof, the navigation pack contains data search information, and the data search information contains seamless angle information having address data of each angle cell,

the video title set of the disk-like recording medium contains a program chain constituted by at least one cell including the angle cell, the program chain contains program chain information, the program chain information contains a cell playback information table, the cell playback information table contains at least one cell playback information, each of the at least one cell playback information contains a cell category, and the cell category contains a cell block type representing the angle block or not and a seamless angle change flag representing a seamless angle change or not, and

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles,

said reproduction apparatus comprises

an angle mark notifying the presence of the angle block,

first means for checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark,

second means for, when the cell block type of the cell category represents a current angle block, flickering, flashing or modifying the angle mark or displaying the angle mark in another color, and

third means for, when the cell block type of the cell category represents the current angle block and the seamless angle change flag of the category represents a seamless angle change, referring to the address data of each angle cell and seamlessly switching the reproduction target to another angle cell different from the angle cell under reproduction without returning along a reproduction time axis.

16. An angle mark turn-on method in a reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, said method comprising:

recording video manager information on the video manager of the disk-like recording medium,

recording a title search pointer table on the video manager information,

recording a title search pointer on the title search pointer table,

recording an angle count on the title search pointer, wherein the angle count represents the number of angles, and

checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark notifying the presence of the angle cell.

17. An angle mark turn-on/off method in a reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, said method comprising:

recording video manager information on the video manager of the disk-like recording medium,

recording a title search pointer table on the video manager information,

recording a title search pointer on the title search pointer table,

recording an angle count on the title search pointer, wherein the angle count represents the number of angles,

checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark notifying the presence of the angle cell, and

when the angle count represents only one angle, turning off the angle mark.

18. An angle mark turn-on/off method in a reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, said method comprising:

recording video manager information on the video manager of the disk-like recording medium,

recording a title search pointer table on the video manager information,

recording a title search pointer on the title search pointer table,

recording an angle count on the title search, wherein the angle count represents the number of angles,

checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark notifying the presence of the angle cell,

when the angle count represents only one angle, turning off the angle mark, and

even when the angle count represents the plurality of angles, arbitrarily turning off the angle mark.

19. A nonseamless angle change method in a reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, said method comprising:

recording at least one video object set on the video title set of the disk-like recording medium,

recording at least one video object on the video object set,

recording at least one cell including the angle cell on the video object,

recording at least one video object unit on the cell,

recording a navigation pack at a head of each of said at least one object unit,

recording presentation control information on the navigation pack,

recording nonseamless angle information including address data of each angle cell on the presentation control information,

recording video manager information on the video manager of the disk-like recording medium,

recording a title search pointer table on the video manager information,

recording a title search pointer on the title search pointer table,

recording an angle count on the title search pointer, wherein the angle count represents the number of angles,

checking the angle count, and when the angle count represents a plurality of angles, turning on an angle mark notifying the presence of the angle block, and

when the angle count represents the plurality of angles, referring to the address data of each angle cell, returning to another angle cell different from the angle cell under reproduction along a reproduction time axis, and nonseamlessly switching the reproduction target.

20. A seamless angle change method in a reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, said method comprising:

recording at least one video object set on the video title set of the disk-like recording medium,

recording at least one video object on the video object set,

recording at least one cell including the angle cell on the video object,

recording at least one video object unit on the cell,

recording a navigation pack at a head of each of said at least one object unit,

recording data search information on the navigation pack,

recording seamless angle information including the address data of each angle cell on the data search information,

recording, on the video title set, a program chain constituted by at least one cell including the angle cell,

recording program chain information on the program chain,

recording a cell playback information table on the program chain information,

recording at least one cell playback information on the cell playback information table,

recording a cell category on each of said at least one cell playback information,

recording, on the cell category, a cell block type representing the angle block or not and a seamless angle change flag representing a seamless angle change or not,

recording video manager information on the video manager of the disk-like recording medium,

recording a title search pointer table on the video manager information,

recording a title search pointer on the title search pointer table,

recording an angle count on the title search pointer, wherein the angle count represents the number of angles,

checking the angle count, and when the angle count represents a plurality of angles, returning on the angle mark notifying the presence of the angle block,

when the cell block type of the cell category represents a current angle block, flickering or modifying the angle mark or displaying the angle mark in another color, and

when the cell block type of the cell category represents the current angle block and the seamless angle change flag of the category represents a seamless angle change, referring to the address data of each angle cell and seamlessly switching the reproduction target to another angle cell different from the angle cell under reproduction without returning along a reproduction time axis.

21. A computer-readable program which is adapted to a disk-like recording medium comprising a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, the at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing or imaging a photographic target at a variety of camera angles,

wherein when the video manager of the disk-like recording medium includes video manager information, the video manager information includes a title search pointer table, the title search pointer table includes a title search pointer, the title search pointer includes an angle count, wherein the angle count represents the number of angles,

said computer-readable program for selectively reproducing video data in the angle cells from the disk-like recording medium comprising:

checking the number of the angles; and

when the checked number is two or more, turning-on an angle mark so as to indicate the existence of the angle cells.

22. A computer-readable program which is adapted to a disk-like recording medium comprising a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, the at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing or imaging a photographic target at a variety of camera angles,

wherein when the video manager of the disk-like recording medium includes video manager information, the video manager information includes a title search pointer table, the title search pointer table includes a title search pointers the title search pointer includes an angle count, wherein the angle count represents the number of angles,

said computer-readable program for selectively reproducing video data from the disk-like recording medium comprising:

checking the number of the angles;

when the checked number is two or more, turning on an angle mark so as to indicate the existence of the angle cells; and

when the checked number is one, turning-off the angle mark.

23. A computer-readable program which is adapted to a disk-like recording medium comprising a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, the at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing or imaging a photographic target at a variety of camera angles,

wherein when the video manager of the disk-like recording medium includes video manager information, the video manager information includes a title search pointer table, the title search pointer table includes a title search pointer, the title search pointer includes an angle count, wherein the angle count represents the number of angles,

said computer-readable program for selectively reproducing video data in the angle cells from the disk-like recording medium comprising:

checking the number of the angles;

when the checked number is two or more, turning-on an angle mark so as to indicate the existence of the angle cells;

when the checked number is one, turning-off the angle mark; and

even if the checked number is two or more, arbitrary turning-off the angle mark.

24. A computer-readable program which is adapted to a disk-like recording medium comprising a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, the at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing or imaging a photographic target at a variety of camera angles,

wherein when the video title set of the disk-like recording medium includes one or more video object sets, the video object set includes one or more video object sets, the video object set contains one or more cells including the angle cells, and the cell includes one or more video object units;

when each of the video object units is provided with a navigation pack at the head portion thereof, the navigation pack includes presentation control information, the presentation control information contains nonseamless angle information including respective address data of the angle cells; and

when the video manager of the disk-like recording medium includes video manager information, the video manager information includes a title search pointer table, the title search pointer table includes a title search pointer, the title search pointer includes an angle count, wherein the angle count represents the number of angles;

said computer-readable program for selectively reproducing video data in the angle cells from the disk-like recording medium comprising;

checking the number of the angles;

when the checked number is two or more, turning-on an angle mark so as to indicate the existence of the angle cells;

when the checked number is two or more, nonseamlessly changing the target of presentation from the currently presented angle cell to another angle cell with reference to the respective address data of the angle cells.

25. A computer-readable program which is adapted to a disk-like recording medium comprising a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, the at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing or imaging a photographic target at a variety of camera angles,

wherein when the video title set of the disk-like recording medium includes one or more video object sets, the video object set includes one or more video object sets, the video object set contains one or more cells including the angle cells, and the cell includes one or more video object units;

when each of the video object units is provided with a navigation pack at the head portion thereof, the navigation pack includes data search information, the data search information contains seamless angle information including respective address data of the angle cells; and

when the video title set contains a program chain constituted by one or more cells including the angle cells, the program chain contains program chain information, the program chain information contains a cell playback information table, the cell playback information table contains one or more cell playback information, each of the cell playback information contains a cell category, and the cell category contains a cell block type representing the angle block or not and a seamless angle change flag representing a seamless angle change or not;

said computer-readable program for selectively reproducing video data in the angle cells from the disk-like recording medium comprising;

checking an angle count wherein the angle count represents the number of the angles;

when the checked number is two or more, turning-on an angle mark so as to indicate the existence of the angle cells;

when the cell block type of the cell category represents the current angle block, flashing the angle mark or modifying the shape of the angle mark or changing the color of the angle mark; and

when the cell block type of the cell category represents the current angle block and the seamless angle change flag of the category represents a seamless angle change, seamlessly changing the target of presentation from the currently presented angle cell to another angle cell with reference to the respective address data of the angle cells.

26. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, the at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles, and

the reproduction apparatus comprises:

an angle mark for notifying the presence of the angle cell,

means for checking the angle count, and when the angle count represents a plurality of angles, generating a signal representing the angle mark, and

means for mixing the signal of the angle mark with another video signal reproduced from the disk-like recording medium.

27. A reproduction apparatus for selectively reproducing video data in an angle cell from a disk-like recording medium having a lead-in area on a central side, an area for recording a video manager outside the lead-in area, and at least one area for recording a video title set outside the video manager recording area, said at least one video title set recording area having an angle block constituted by a plurality of angle cells, and the angle cells containing different video data obtained by photographing a photographic target at a variety of camera angles, wherein

the video title set of the disk-like recording medium contains at least one video object set, the video object set contains at least one video object, the video object contains at least one cell including the angle cell, said cell contains at least one video object unit, each of said at least one video object unit contains a navigation pack at a head thereof, the navigation pack contains presentation control information, and the presentation control information contains nonseamless angle information having address data of each angle cell, and

the video manager of the disk-like recording medium has video manager information, the video manager information contains a title search pointer table, the title search pointer table contains a title search pointer, and the title search pointer contains an angle count, wherein the angle count represents the number of angles,

said reproduction apparatus comprises:

an angle mark notifying the presence of the angle block, and

first means for checking the angle count, and when the angle count represents a plurality of angles, turning on the angle mark.