Automatic Seamless Branching Story-Telling Apparatus

1. Field of the Invention

The present invention relates generally to a story-telling apparatus, and more particularly to a story-telling apparatus that utilizes pre-recorded multi-track media to store stories, and that randomly and seamlessly transitions between the tracks of the media at predetermnined points in the story so as to randomly change the story being told in order to provide maximum entertainment and educational benefit.

2. Description of the Prior Art

Telling stories is a timeless method of entertaining and educating children, and for challenging their imaginations. The most common story-telling method is book reading. For younger children, reading requires the involvement of the child's parent, which is often inconvenient for the parent. Moreover, stories in books are stagnant, i.e., the story characters, plot lines, and ending do not change.

Using modem multi-media techniques and computers, stories can now be migrated to CD-ROM's and the like. Such multi-media stories permit music and sounds to make stories more realistic and, in some instances, enable the characters to become interactive. Multi-media techniques even permit the child to interact with and alter the outcome of the story. Typically, a computer must be used to play such multi-media stories, involving great cost and requiring the ability to read in order to operate the computer equipment. Beside the cost of the computer, such stories may only be played by the child at the computer location, which is generally not removable from this location (i.e., non-portable). Also, interactive multi-media stories may not be played by children too young to safely operate the computer. computer, such stories may only be played by the child at the computer location, which is generally not removable from this location (i.e., non-portable). Also, interactive multi-media stories may not be played by children too young to safely operate the computer.

Accordingly, a need exists for a relatively inexpensive portable automatic apparatus that is capable of telling stories to children and that includes the ability to seamlessly and randomly vary the story so as to maintain the interest of the child and to enhance the entertainment and educational value of the story. Stories that can seamlessly change and automatically alter themselves will garner greater motivation to listen by a child, challenge their imaginations more, and be more educational.

Systems that engage in interactive conversation using a multi-track media are well known in the art. For example, commonly owned U.S. Pat. Nos. 3,947,972 and 4,078,316, the contents of each of which are incorporated herein by reference, disclose a conversational teaching apparatus which employs a time synchronized multi-track audio tape to store educational conversation messages. This device employs one or more tracks to relay interrogatories to a user. The tracks are then used, selectable by a manual switching mechanism, to convey responsive messages.

Commonly owned U.S. Pat. Nos. 5,313,510 and 5,340,317, the contents of each of which are incorporated herein by reference, improved upon the earlier conversational system by programming conversations on a magnetic media in a decision-tree logic which allowed complex conversations to be developed using the multi-track media. The information is stored on each track in a plurality of reproducible information segments which contain interrogatory messages and associated multiple choice responses, responsive messages, informational messages, and combinations thereof. The responsive messages contained on the tracks are related in real-time and content to particular interrogatory messages on the tracks, and correspond with multiple choice selectable responses. The apparatus could exhibit pseudomemory and multiple simultaneous pseudo-memories; exhibit profiling and substitutability; and categorize and subcategorize users of the apparatus.

Commonly owned U.S. patent application Ser. No. 08/749,345, the contents of which are incorporated herein by reference, further improved the use of interactive multi-track media by utilizing voice recognition to recognize answers to interrogatories to provide switching between tracks of the media.

These existing systems are all interactive, i.e., they require user input to create the transition between tracks of the multi-track media. Accordingly, these systems do not meet the aforementioned need for a relatively inexpensive dedicated apparatus that is capable of telling stories to children and that includes the ability to seamlessly, randomly and automatically, without input from the child, vary the story so as to maintain the interest of the child and to enhance the entertainment and educational value of the story-telling apparatus.

The present invention is a story-telling apparatus which includes a storage media having a plurality of temporally related data storage tracks containing story content. The story content is stored on each track in a plurality of information segments. Each of the segments includes a complete message reproducible in response to the selection of the track upon which the segments are stored. Each of the information segments at any given time includes information related in real-time and content to information contained in each information segment on each track in an immediate prior time. The information is stored on the tracks in a predetermined timed sequence for providing story content varying dependent upon the tracks automatically selected during playback. The storage media also includes control code information.

Playback means facilitates playback of the story content of a selected data storage track. Track selector means, which is preferably a microprocessor and switch, reads the control code information and randomly selects and accesses one of the tracks of the storage media in response to the stored control code information for retrieving the information stored on the selected track and for enabling the playback of the retrieved information via the playback means.

In one embodiment, one of the data storage tracks includes the command codes. In this embodiment, the apparatus includes command code playback means for providing playback of the track having the command codes independently of the tracks having the story content. The temporally related data storage tracks are preferably stored on a magnetic storage media having a plurality of coextensive tracks and the playback means includes magnetic storage media reading means corresponding with each of the plurality of coextensive tracks. Alternatively, the playback means includes magnetic storage media reading means for the command code track, and at least one magnetic media storage media reading means for the coextensive tracks having the story content.

If desired, the tracks may be stored digitally and be randomly accessible. In this embodiment, the storage media is selected from the group consisting of magnetic disk, compact disk, video disk, magnetic tape, RAM, PROM, EPROM, and EEPROM. In a preferred embodiment, the data storage media are analog cassette tapes and the playback means enables the removal and replacement of the storage media.

The command codes may further include memory storage commands and memory switching commands. After the microprocessor randomly selects a current track, it stores a first identification of the track being played in memory. It holds this track in memory via a memory storage command. Then, in response to a memory switching command, it switches back to the track originally associated with the first identification. By using this method a number of times in one story, certain elements, after being chosen randomly, are repeated in the story to maintain consistency. So if the story randomly begins about a little girl named Casey, for example, this information will remain constant throughout the story. If desired, the tracks that include story content may include audible or inaudible control commands for the track selector means. The microprocessor or other controller discriminates the audible or inaudible control commands from the story content.

In addition, a memory stores the branching of playback of the entire story. When the story is next played back, the memory can be used to play back the story using the stored branching, instead of randomly. A store or repeat switch initiates this memory and the playing back of the stored branching. If desired, a code is used for identifying each particular story or storage media in order to enable the storing and playback of branching of each particular story or storage media from memory.

FIG. 1 is a diagrammatic illustration, partially in schematic, of the selection, playback, and controller portions of one embodiment of the present invention.

FIG. 2 is a diagrammatic illustration, partially in schematic, of the selection, playback, and controller portions of an alternative embodiment of the invention.

Referring now to the drawings in detail, and initially to FIG. 1, the automatic seamless branching story-telling apparatus of the present invention uses a playback mechanism similar to those disclosed in commonly owned U.S. Pat. Nos. 3,947,972; 5,313,510; and 5,340,317, and in commonly owned co-pending U.S. patent application Ser. No. 08/49,345, the contents of each of which are incorporated herein by reference. A conventional multi-track magnetic tape player 2 is utilized for retrieving audio information from a multi-track magnetic storage media 4 via multi-track playback head 6. The playback head 6 is preferably connected in conventional fashion to a conventional four channel audio amplifier 8, having one channel for each of the respective four tracks, A, B, C, D of multi-track tape 4 so as to conventionally play back the information stored on the respective audio tracks. Playback head 6 is preferably a conventional 4 channel audio playback head, with preferably equal head widths for each of the respective tracks A, B, C, D.

The output of audio amplifier 8 is preferably connected to a switch 10 which preferably incorporates a plurality of switches 12, with one switch being provided per track of multi-track tape 4. Each switch 12 is connected to the appropriate channel output of audio amplifier 8. Switches 12 are preferably conventional magnetic or electronic switches that are switched as desired by switch 10. Switches 12 are preferably connected between the output of audio amplifier 8 and a conventional audio output device, such as a speaker 14 or earphones 16, through a volume control 18. The other terminal of audio output device 14 or 16 is connected to audio amplifier 8 to complete the circuit. Thus, when one of switches 12 is closed, the output of the corresponding audio track A, B, C or D, all of which are being provided to audio amplifier 8 by multi-track playback head 6, is selectively provided to audio output device 14 or 16 to be heard by a child or other user.

Switch 10 is preferably a relatively simple logic circuit for receiving the output of controller 20. and for switching to one of the audio tracks on the basis of the signal from controller 20. For example, controller 20 may utilize a two-bit output which is received by switch 10 and by which switch 10 selects from amongst the 4 channels.

As described in greater detail below, the audio tracks include messages having audible or inaudible control tones that define switching locations within the content of the messages. These tones are detected by a tone detector (decoder) 24 which generates an output signal to controller 20 when a control tone is detected. Controller 20 receives the output of tone detector 20 and randomly selects one of the four channels for switching to that channel. Controller 20 then generates commands to switch 10 to select the randomly selected one of the four channels for playback.

The multi-track tape 4 is preferably removable from the playback means 2 so that different multi-track tapes 4 having different stories stored thereon may be inserted and used in the apparatus of the invention. This makes it possible to record a library of prerecorded media covering a wide array of topics. For example, as described below, the media might contain stories regarding one type or theme, and other media containing other types or themes of stories. The removable media are preferably multi-track magnetic tape cartridges, but may be any removable multi-track media such as, for example, magnetic disk, optical disk, or other media appropriate for the present application. These removable multi-track tapes are preferably contained in rigid cartridges for convenient removal and replacement.

The apparatus of the present invention may comprise other embodiments. Rather than utilizing a multi-track magnetic tape or other removable media, the system might use any appropriate data storage means for containing various stories, provided that the information stored thereon may be separated into tracks. For example, a conventional magnetic disk, CD or other optical disk, or even hardware, such as RAM, PROM, ROM or EPROM, could be used to store the information. The information data could be physically stored on individual disk tracks, or the data could be organized so that each track of information is randomly accessible as separate or separable files on the disk or storage media. In conjunction with a disk reader appropriate for the type of disk drive in use, or a microprocessor or microcontroller for reading the digital data from a hardware memory device, the information stored on the individual tracks could be output to a user of the system in a real-time or near real-time fashion.

When utilizing a disk or other physical media for storing digital data, it might be advantageous for a microprocessor to be provided for the purpose of first reading the various tracks into a memory cache, which would allow faster access to the story information. Thus, during operation in this instance, the microprocessor would read the serial track information from the disk into parallel tracks in cache memory in advance, while substantially simultaneously reading the track data from cache to memory to an output device. As the cache memory were depleted, it would be refilled from disk or other media by the processor. The microprocessor could be used in this instance also to provide switching functions.

Output to the user could be by various devices, depending on the type of media used. For example, if the stored stories on the multi-track media are in digital form, i.e. CD-ROM, magnetic disk, DAT, the processor or other means could convert the digital information streams to analog signals for output to conventional headphones or could be output directly to digital headphones. It is anticipated that the system of the present invention could employ a large variety of multi-media inputs and outputs as such technologies develop. It is further anticipated that any storage means capable of storing and substantially simultaneously retrieving story data could be employed by the present invention. Whatever multi-track device is employed, it should preferably contain one track for each of the number of tracks to be used in the story. In a preferred embodiment, four equal bandwidth tracks are used. It may, however, be advantageous to utilize a larger number of tracks to obtain more complex stories, or a smaller number if cost is a factor.

If desired, the four channel audio amplifier could be replaced by a conventional one channel amplifier which amplifies only the one selected channel. As discussed below, if one channel is to be reserved for control commands, a conventional one channel amplifier could be used to read the control commands, while another conventional one channel amplifier could be used to select from amongst the remaining channels for the story.

The information is stored on each track in a plurality of reproducible information segments, each of which comprises a story message reproducible by the playback device directly in response to the automatic selection of the track upon which the segments are stored. Each of the information segments on the various tracks contain messages, music, sound effects, etc. The messages contained on the various tracks are related in real-time to the time-synchronized messages on the other tracks so that a story may be told as the media is played back. As the controller automatically randomly switches between the tracks at the switch points denoted by the tones on the tape, which may occur between paragraphs, sentences, and mid-sentence, random storytelling outcomes are routed to the output device. By perfectly synchronizing the channels, such switching may occur completely seamlessly. On the randomly selected track at the time at which the switch occurred, is an information segment whose content corresponds with the information on the prior track on the prior channel, but may be different from the information on the other tracks at the current time. The various story messages, may generally be contained on any or all of the various tracks provided that they are synchronized properly so as to retain a timed relationship.

In order to understand the story-telling system of the invention, several examples will now be provided. Example 1 illustrates a relatively simple story. In this example, all four channels of the media are used to store the stories. Audible or inaudible tones are present on the channels in the positions labeled "BRANCH CODE." If the tones are audible, they may be embedded within the background music or sound effects. The tones are preferably of a sufficiently high or low frequency and/or a specified duration so as to effectively be inaudible and not interfere with the story content. The command codes may be either analog or digital signals. These tones are detected by tone detector 24, which causes controller 20, which is preferably a microprocessor, to randomly switch to one of the channels. If the current channel is the randomly selected channel, no switch will occur. Controller 20 generates a binary output corresponding to the desired channel. Switch 10 receives the binary signal from controller 20 and selects a channel from channels 1, 2, 3 and 4 corresponding to binary outputs 00-11. As shown in the example, in addition to random switches, non-random switching may occur as well. Controller 20 is equipped with any appropriate type of memory for performing memory-type functions. In Example 1, "Branch Type X" denotes a command to the microprocessor to place in the indicated memory the Channel No. (e.g. X-1 stores the Channel No. in memory #1) of the channel being played at the time of the branch. Branch Type "Y" is a random branch to any of the four channels. Branch type "Z" is a branch to the Channel indicated in the associated memory (e.g., Branch Type Z-1 will branch to the Channel No. stored in memory No. 1.)

Example 2 demonstrates a more complex example. In this example, three tracks, i.e., tracks 1-3 are used to store the story information. The fourth track, i.e., track 4 is used to store command code information. As shown in FIG. 2, a microprocessor 26 is utilized to read track switching instructions from the audio tape itself in order to perform random or non-random switching at the desired switch points. In this embodiment, a conventional one channel amplifier preferably reads audible control commands for the microprocessor from Channel 4, while another conventional one channel amplifier plays back the selected one of the remaining channels for playing the story content. In order to perform the "Replay" function discussed below, microprocessor 26 is equipped with non-volatile RAM or other memory, which is preferably either static, i.e., it will not be lost when power to the system is turned off, or is connected to the power source so that the memory will be retained until the battery is drained. If the "Replay" function is not used, any appropriate type of memory may be employed. For this example, "SFX" denotes a special effect. Accordingly, SFX A denotes a different sound effect than SFX B. "MUSIC" denotes the background music on the track. Thus, MUSIC A is different from MUSIC B. In connection with the Replay function, at the beginning of the track with the command codes a TAPE ID code is preferably stored. The TAPE ID is unique to each story tape and is used by the microprocessor to identify the tape. "Branch Type X" denotes a command to the microprocessor to place in the indicated memory (e.g. X-1 stores the Channel No. in memory #1) the Channel No. of the channel being played at the time of the branch. Branch Type "Y" is a random branch to any of the three channels. Branch type "Z" is a branch to the Channel indicated in the associated memory (e.g., Branch Type Z-1 will branch to the Channel No. stored in memory No. 1.)

As shown in FIG. 2, the apparatus preferably includes a switch 28 connected to the microprocessor. The apparatus is preferably located within a cuddly teddy bear or other housing suitable for children. Accordingly, the switch would be located on the surface of the teddy bear, on the bear's ears, etc. Switch 28 is preferably a momentary switch that is labeled "Freeze", "Replay", or the like. During playback of a story, the microprocessor records the STORY ID of the story and preferably stores in non-volatile memory all of the branching that occurs during playback of the story. After listening to the story, the user may press this switch, at which time the branching for the STORY ID will be locked into memory. During the next playback of the story, the microprocessor will use the stored branching in playing back the particular story. This may include random branches, if desired, which may be stored in memory at the time the branch is made. If the switch is depressed after the next playback of the story using the stored branching, the branching will again be stored in memory and used during the next playback. If desired, a TAPE ID may be associated with an entire group of stories and the same switch or a different switch used to store branching for an entire tape or group of stories. It will be appreciated that the memory functions may be varied as desired to implement any desired functionality provided that sufficient memory is available.

Although the present invention has been described in detail with respect to certain embodiments and examples, variations and modifications exist that are within the scope of the present invention as defined in the following claims.