Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1999-05-21
2002-07-02
Tran, Thai (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C725S053000
Reexamination Certificate
active
06415099
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a recording arrangement having receiving means for receiving a television signal and an information signal in which television program information can be transmitted, and having recording means for recording a processed received television signal of a television program, and having selection means for selecting at least one television program whose title information contained in the television program information contains at least one given keyword.
2. Description of the Related Art
Such a recording arrangement of the type defined in the opening paragraph is known from International Patent Application WO 93/05618 (PCT/DE92/00733) and is formed by a video recorder and a remote control device which cooperates with the video recorder. The known arrangement has receiving means for receiving a television signal, which can be reproduced as a television program on a television set which can be connected to the recording arrangement. After processing in signal processing means, a received television signal of a television program can be recorded as a processed received television signal with the aid of recording means of the recording arrangement.
The receiving means are further adapted to receive an information signal transmitted in blanking intervals of a television signal. The information signal conveys digital data representing an electronic program guide, this data including television program information, such as, date, starting time, ending time and title of television programs, which can be received, for example, within the next week, as a television signal from a television station via a television channel. Such an electronic program guide is known, for example, as the “Electronic Program Guide (European Telecommunication Standard ETS 300 707).
An information signal received by the known video recorder can be applied to the remote control device. The remote control device includes a television program memory in which television program information on future television programs, as derived from the information signal, can be stored. The remote control device further comprises selection means formed by a plurality of keys each corresponding to a given theme, such as, for example, “westerns”, “operas”, “news” or “shows”. By actuating one of these keys, it is possible to select television programs stored in the television program memory and corresponding to the theme of the actuated key. Moreover, in a keyword entry mode, a letter can be assigned to each key of the remote control device, these keys allowing a user of the video recorder to enter a keyword by hand. Thus, it is possible to actuate a remote control key assigned to, for example, the theme “comedy” and, in addition, to enter the keyword “Elvis” by hand in the keyword entry mode in order to select those television programs stored in the television program memory, which should be assigned to the theme “comedy” and whose titles contain the keyword “Elvis”. One or more of the selected television programs can be displayed on the television set connected to the known recording arrangement.
In this way, the television set can display a list of recording suggestions for television programs which may be of interest to the user of the known recording arrangement. Displaying a list of recording suggestions greatly facilitates the choice of a television program which is of interest to the user in order to be recorded by means of the recording arrangement. Furthermore, the list of recording suggestions greatly facilitates programming of the recording arrangement for a time-shifted recording.
However, with the known recording arrangement, it has been found that the themes assigned to the keys of the remote control device by the manufacturer of the recording arrangement hardly ever adequately represent the themes which are of interest to the user. On the one hand, the themes assigned to the keys, such as, for example, “soccer”, “tennis”, “combat sport” and “swimming” are hardly used by a user who is not very keen on sports, while, in the case that another theme such as “serials” has been preset, the television set will show an excessively long list of recording suggestions, which does not simplify the choice of a television program. Therefore, it is also necessary to enter a keyword by hand in order to obtain a list of recording suggestions which is adapted to the user's interests. The actuation of one of the many keys of the remote control device in order to preset a theme and the additional actuation of one of the many keys in order to preset a keyword for the user cannot be effected in a easy and reliable manner, as a result of which the operating convenience of the known recording arrangement is not very high. Moreover, the number of themes is limited by the number of keys of the remote control device, which is also a disadvantage. Moreover, the broadcasting station should assign an appropriate theme to each television program, and for each television program, a characteristic code corresponding to this theme should be transmitted in the information signal for each television program and should be decoded in the recording arrangement, which requires a substantial expense. Furthermore, it is, each time, necessary to manually enter keywords, which further reduces the operating convenience.
SUMMARY OF THE INVENTION
It is an object of the invention to eliminate the aforementioned problems and to provide an improved recording arrangement of the type defined in the opening paragraph. In a recording arrangement of the type defined in the opening paragraph, this object is achieved in that keyword detection means have been provided for detecting at least one item of title fragment information of title information of a television program recorded by the recording means as a processed received television signal, and in that at least one detected keyword can be used as a given keyword by the selection means. Thus, it is achieved that title information representing a title of a television program, recorded by the user by means of the recording arrangement because this television program is of interest to him, is used to determine at least one keyword which characterizes the user's interest. Suitably, a keyword is then determined automatically without any operations by the user being required or without being tied to a given type of programming of the recording arrangement in order to record a television program—for example, VPT programming or Show View programming. A keyword thus determined automatically has the advantage that it very accurately agrees with the current interest of the user.
In a recording arrangement as defined above, it has proven to be advantageous to provide a keyword memory for storing at least one detected keyword. This has the advantage that all the automatically determined keywords are stored and thus a database of keywords is obtained which is a very accurate representation of the user's interest profile with regard to the television programs recorded by the user and what future television programs he is likely to be interested in. A list of recording suggestions of television programs whose titles contain at least one of the stored keywords will therefore include a multitude of television programs which are of interest to the user.
In a recording arrangement as defined above, it has proven to be advantageous to adapt the keyword memory to store a recurrence count for each keyword, which recurrence count can be incremented upon each further detection of this keyword by the keyword detection means, and in that for the selection of television programs, the selection means can apply only those keywords whose recurrence counts have values which exceed a selection threshold value which depends on at least one other value of a recurrence count stored in the keyword memory. As a result of this, it is achieved that the selection means only select those television programs whose titles include a keyword which has already been detecte
Goodman Edward W.
Koninklijke Philips Electronics , N.V.
Onuaku Christopher
LandOfFree
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