The assignee for this patent, patent number 8643786, is
Reporters obtained the following quote from the background information supplied by the inventors: "The present invention relates to a method and receiver of acquiring program guide information in an image signal receiving apparatus, and to a method and apparatus for guiding a program using the same.
"Generally, program information of a conventional analog TV broadcast is supplied to publications such-as newspapers, TVs, magazines, etc. However, in a digital multichannel broadcast, tens to hundreds of channels are provided, so that a total number of the selections available to viewers becomes larger and simultaneously program selection is significantly complicated.
"In such a digital broadcast, an electronic program guide (EPG) providing a program list or information on the content of each program is introduced as a fundamental data service.
"Current EPG information is transmitted per channel. That is, since the EPG information of a corresponding channel is transmitted per channel, it is difficult to obtain the EPG information of all channels capable-of being accessed.
"To be more specific, the EPG information of a current received channel can be obtained by interpreting additional information included in a transport packet received. However, in order to acquire EPG information of all channels capable of being accessed, a user must tune all channels individually.
"In the digital broadcast, many more channels are provided than in the analog broadcast, and each channel can include subchannels. Therefore, it is important to swiftly interface the EPG information of each channel to a user."
In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventor's summary information for this patent: "To solve the above problems, it is an object of the present invention to provide a method of acquiring useful EPG information.
"It is another object of the present invention to provide a program guide method appropriate for the above method.
"It is still another object of the present invention to provide a program guide apparatus appropriate for the above method.
"Accordingly, to achieve the first object, there is provided a method of acquiring program guide information for channels wherein the program guide information for each channel is acquired by scanning accessible channels while a received program is not displayed.
"To achieve the second object, there is provided a program guiding method in which a program list for channels is displayed in response to a program guide command. The program guiding method comprises the steps of acquiring program guide information of accessible channels, storing the acquired program guide information, writing a program list on the basis of the stored program guide information, and displaying the written program list to the user.
"Also to achieve the second object, the step of acquiring the program guide information comprises the steps of writing and displaying a program list including program guide information of channels tuned before a program guide command is executed, from the stored program guide information, and acquiring program guide information for each channel by searching for accessible channels in a background operation while the program list is referred to.
"To achieve the third object, there is provided an apparatus for acquiring the program guide information of accessible channels and guiding program guide information acquired in response to a program guide command in a multichannel receiver. The apparatus comprises a tuner tuning a channel, a program guide information detector, a memory, a key input, a microprocessor, and a character signal generator.
"The program guide information detector detects program guide information introduced via the tuner. The memory stores the program guide information for each channel detected by the program guide information detector. The key input introduces a user manipulation command such as a program guide command or a channel search command. The microprocessor writes a program list based on program guide information stored in the memory in response to the manipulation command input via the key input and is programmed to search for accessible channels by controlling the tuner in a background operation while a user refers to the program list. The character signal generator generates a character signal corresponding to the program list written by the microprocessor and provides the character signal to a screen."
For more information, see this patent: Park, Ju-ha. Program Guide Apparatus. U.S. Patent Number 8643786, filed
Keywords for this news article include: Microprocessors,
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