Obviousness

The obviousness analysis of US patent 8,713,624 under 35 U.S.C. § 103 requires identifying combinations of prior art references that would render the claims obvious to a person having ordinary skill in the art (POSA). The motivation to combine these references must also be explained. This analysis relies solely on the prior art explicitly described and limited within the provided patent text, ensuring no outside information is introduced.

General Motivation for Combination

The patent itself frequently highlights the limitations of the prior art, indicating areas where existing technologies were insufficient. For instance, it notes the inefficiency of embedded signals being used "only to identify programming" and suggests that "broadcasters can foresee alternate potential for this capacity that may be more profitable". This implies a general motivation for a POSA to expand the utility of embedded signals beyond mere identification to include control functions. Similarly, for various systems, the patent criticizes the lack of automatic, broadcast-controlled operations or the inability to handle user-specific information effectively. A POSA would be motivated to address these identified shortcomings by combining known elements to achieve more automated, controlled, and personalized media experiences, which are clearly recognized benefits.

Obviousness Analysis for Independent Claims

Claim 1: Personalized, Combined Audio-Visual Display

• Claim Elements: A method where a broadcaster transmits a television signal containing embedded digital instructions. A local receiver detects these instructions and uses them to control a processor. This processor then combines locally generated information with the received television program to create a personalized, combined audio-visual display for the user.

• Prior Art Elements:

  • Broadcast TV signal with embedded digital signals: U.S. patent to Haselwood, et al. U.S. Pat. No. 4,025,851, U.S. patent to Crosby U.S. Pat. No. 3,845,391, and U.S. patent to Greenberg U.S. Pat. No. 4,547,804 describe embedding digital signals in programming for monitoring purposes. While these signals were "used only to identify programming", the patent notes the inefficiency of this single function and the potential for "alternate potential".
  • Local receiver detects signals: This is inherent in the monitoring systems of Haselwood, Crosby, and Greenberg, and the "modios" described for Dataspeed Corporation and Equatorial Communications Company that "receive the particular transmission and convert its data content into unencrypted digital signals that computers can process".
  • Local processor controlled by instructions: Dataspeed Corporation and Equatorial Communications Company describe microcomputers that receive and process data, though the patent notes they "do not control data processing" in a broad, broadcast-driven sense. U.S. patent to Lambert U.S. Pat. No. 4,381,522 describes a minicomputer controlling a cable television system and responding to signals.
  • Combining information / Overlay display: U.S. patent to Bourassin et al. U.S. Pat. No. 4,337,480 describes an "image-within-image" feature where a secondary image from a peripheral unit can be superimposed upon the primary image on a television display.
  • Locally generated information / Personalization: Dataspeed Corporation and Equatorial Communications Company allow subscribers to "program his subscriber station apparatus to select particular data of interest", implying local processing and generation of customized information. The patent's example in FIG. 1 mentions a microcomputer with a floppy disk holding "information on the portfolio of financial instruments owned by the subscriber".

• Motivation for Combination:
  A POSA would have been motivated to combine the broadcast embedded signal technology (Haselwood et al./Greenberg) with local data processing and overlay capabilities (Bourassin et al., Dataspeed Corporation/Equatorial Communications Company) to overcome the recognized limitations in the prior art. The patent itself highlights that Bourassin's overlay "has no capacity to cause receiver station computers to generate any information whatsoever, let alone user specific information" or "cause overlays to commence or cease appearing at receiver stations". Similarly, Dataspeed/Equatorial systems were limited in that they "only transmits data; it does not control data processing" in a broadcast-driven manner to generate user-specific information.

  Recognizing the inefficiency of embedded signals serving "only one function" (identification) as noted by the patent, a POSA would be motivated to utilize these embedded signals (from Haselwood/Greenberg) as control instructions. These instructions would direct a local microcomputer (as found in Dataspeed/Equatorial systems, capable of processing "data of interest" and holding local data files) to generate personalized information. This locally generated, personalized information would then be combined with the broadcast TV program using the "image-within-image" overlay technique taught by Bourassin et al.. This combination would predictably result in a personalized, combined audio-visual display where broadcast instructions dynamically control the generation and display of local, user-specific content, directly addressing the limitations identified by the patent regarding both overlay control and personalized data processing.

Claim 20: Regulating Access to Television Programming (Encryption/Decryption)

• Claim Elements: A method for regulating access to television programming. A TV signal with embedded encrypted instructions is sent out. A receiver at the subscriber's location detects and decrypts these instructions. The decrypted instructions then control a processor that enables or disables access to the TV programming.

• Prior Art Elements:

  • TV signal with embedded signals: Haselwood, Crosby, and Greenberg describe embedding signals in programming.
  • Encrypted instructions / Decryptors: The prior art includes "decoders and decryptors" and "addressable" systems that "enable programming suppliers to restrict the use of transmitted programming to only duly authorized subscribers". These "addressable" systems "have capacity for controlling specific individual subscriber station apparatus by means of control instructions transmitted in broadcasts," and can "turn off subscriber station decoder/decryptor apparatus of subscribers who do not pay their bills and turn them back on when the bills are paid". Dataspeed/Equatorial's "modios" include "decryptors".
  • Receiver detecting and decrypting instructions: The "addressable" systems inherently perform this function to control subscriber access. Dataspeed/Equatorial's "modios" also decrypt received data.
  • Processor controlled by decrypted instructions: The "addressable" systems control "specific individual subscriber station apparatus". Lambert's minicomputer controls a cable TV system and responds to signals.
  • Enabling/disabling access: This is the core function of the described "addressable" systems, which can "turn off subscriber station decoder/decryptor apparatus".

• Motivation for Combination:
  A POSA would be motivated to combine the known access control capabilities of "addressable" systems with the technique of embedding digital signals in broadcasts. The patent identifies limitations of prior art access control systems, stating they "have no capacity for identifying then selectively decrypting control instructions embedded in unencrypted programming transmissions". However, the concept of embedding signals is known (Haselwood/Greenberg), and the use of decryptors within receiver systems is known (Dataspeed/Equatorial "modios"). The very purpose of "addressable" systems is to control access via broadcast instructions and decryptors.

  A POSA, seeking to improve the robustness, efficiency, or integration of access control within the broadcast stream, would find it obvious to embed the encrypted control instructions (which "addressable" systems already transmit) directly into the television signal itself, as suggested by the embedded signal techniques of Haselwood/Greenberg. The motivation would be to make the control signals inseparable from the programming and to leverage the existing capacity for embedded signals for a control function, rather than just identification, a change the patent itself suggests broadcasters would find profitable. The local receiver/decryptor (from "addressable" systems or Dataspeed "modios") would then detect and decrypt these embedded instructions, and the processor (part of the subscriber station apparatus controlled by "addressable" systems) would enable or disable access accordingly, thereby directly implementing the known function of addressable systems using embedded control.

Claim 24: Personalized Information Service (Processing Stored Personal Information)

• Claim Elements: A broadcaster transmits a signal containing embedded instructions. At a subscriber's site, a receiver detects these instructions, which then direct a local processor to access stored personal information. This local information is then processed and displayed to the user in a specific way, creating a customized information output based on the broadcast signal.

• Prior Art Elements:

  • Broadcast signal with embedded instructions: Haselwood, Crosby, and Greenberg teach embedding signals in programming.
  • Receiver detects instructions: Implied by monitoring systems (Haselwood/Greenberg) and Dataspeed/Equatorial "modios".
  • Local processor controlled by instructions: Dataspeed Corporation and Equatorial Communications Company describe microcomputers that receive "real-time financial data" and where subscribers "program his subscriber station apparatus to select particular data of interest". This demonstrates local processing and some form of user-directed control.
  • Accessing stored personal information: Dataspeed/Equatorial systems involve subscribers selecting "particular data of interest," which inherently requires some form of stored preference or profile data that can be considered "personal information." The patent's example in FIG. 1 describes a local microcomputer with a floppy disk storing "information on the portfolio of financial instruments owned by the subscriber".
  • Processing and displaying customized information: Dataspeed/Equatorial allow subscribers to select "particular data of interest", leading to a customized display. The patent also refers to "electronic print services" such as "tickers" and "broad tapes" as a form of electronic print mass medium.

• Motivation for Combination:
  A POSA would be motivated to combine broadcast embedded signals (Haselwood et al./Greenberg) with the local data processing and personalization capabilities of systems like Dataspeed Corporation/Equatorial Communications Company. The patent notes that Dataspeed/Equatorial systems "only transmits data; it does not control data processing" in a broadcast-driven manner, and "None has any capacity to cause subscriber station computers to process received data, let alone in ways that are not inputted by the subscribers".

  To overcome this limitation and provide automated, broadcast-controlled personalization, a POSA would recognize the utility of using embedded signals (from Haselwood/Greenberg, motivated by the inefficiency of using them only for identification) as control instructions. These instructions would direct a local microcomputer (Dataspeed/Equatorial, which already processes "data of interest" and has local storage for relevant information like a portfolio). The microcomputer would then automatically access stored personal information (e.g., subscriber preferences or financial portfolios as in the patent's example), process it according to the broadcast instructions, and display the customized output. This combination provides a predictable way to achieve dynamic, broadcast-controlled personalized information services, addressing the gap identified in the Dataspeed/Equatorial systems by leveraging embedded signals for control.

Claim 42: Combined Audio-Visual Program from Multiple Sources (Broadcast + Local AV)

• Claim Elements: A method to create a combined audio-visual program from multiple sources. A television signal with embedded digital instructions is broadcast. A local receiver uses these instructions to control a processor, which then combines the television program with information from a separate, locally stored audio-visual source (like a videotape). This allows for the creation of a unique program for the user that blends broadcast content with their own media.

• Prior Art Elements:

  • TV signal with embedded digital signals: Haselwood, Crosby, and Greenberg teach embedding signals in programming.
  • Local receiver detects instructions: Implied by monitoring systems (Haselwood/Greenberg) and Dataspeed/Equatorial "modios".
  • Processor controlled by instructions: Lambert's minicomputer "actuates preloaded video tape, disc or film players and transmits the programming transmissions from these players".
  • Locally stored audio-visual source (e.g., videotape): Lambert explicitly mentions "preloaded video tape, disc or film players". "Interactive video" systems have "capacity for locating prerecorded television programming on a given disc". Video tape recorders "have capacity for automatic delayed recording of television transmissions on the basis of instructions input manually by viewers".
  • Combining TV program with local AV: Bourassin et al. (US 4,337,480) teaches "image-within-image," allowing a secondary image from a "second peripheral unit" to be superimposed upon the primary TV image.

• Motivation for Combination:
  A POSA would be motivated to combine the embedded signal control of broadcasts with the capabilities of local AV playback and display integration to overcome limitations in existing systems. The patent notes that "interactive video" systems "has no capacity for automatically embedding signals in and/or removing embedded signals from a television transmission then recording the transmission" or "controlling the connection or actuation or tuning of external apparatus". Similarly, VCRs rely on "instructions input manually by viewers" for delayed recording.

  To achieve automatic, broadcast-synchronized control of local AV sources, a POSA would leverage the embedded digital signals (from Haselwood/Greenberg, motivated by their underutilized potential for control) as instructions. These instructions would control a local processor (like Lambert's minicomputer which "actuates preloaded video tape, disc or film players") to play content from a locally stored audio-visual source (e.g., videotape as described for Lambert or interactive video systems). The output from this local AV source would then be combined with the incoming television program using the "image-within-image" technique described by Bourassin et al.. This combination directly addresses the need for broadcast-controlled actuation and synchronization of local AV content, providing a predictable way to create a blended program that overcomes the manual or unsynchronized nature of prior art systems.

Claim 52: Broadcaster Control of Subscriber's Equipment

• Claim Elements: A broadcaster sends a signal with embedded instructions. A local receiver detects these and uses them to control a processor. This processor, in turn, can operate various pieces of equipment at the subscriber's location, such as recording devices or other peripherals.

• Prior Art Elements:

  • Broadcaster sending signal with embedded instructions: Haselwood, Crosby, and Greenberg teach embedding signals in programming. "Addressable" systems control "specific individual subscriber station apparatus by means of control instructions transmitted in broadcasts".
  • Local receiver detects instructions: Implied by monitoring and addressable systems.
  • Processor controlled by instructions: Lambert's minicomputer "actuates preloaded video tape, disc or film players". "Addressable" systems control "specific individual subscriber station apparatus". Dataspeed/Equatorial microcomputers receive and process data.
  • Operating equipment at subscriber's location (peripherals/recording devices): Lambert controls video tape players. U.S. patent to Bourassin et al. U.S. Pat. No. 4,337,480 describes a "dynamic interconnection system for connecting at least one television receiver to a plurality of television peripheral units". Video tape recorders have "capacity for automatic delayed recording of television transmissions on the basis of instructions input manually by viewers". The patent notes that Freeman et al. (and by implication, Bourassin) lacked "capacity for acting on instructions transmitted by broadcasters to interconnect, actuate or tune systems peripheral to a television receiver".

• Motivation for Combination:
  A POSA would be motivated to combine embedded broadcast signals (Haselwood et al./Greenberg) with local processing and peripheral control capabilities (Lambert, Bourassin et al., VCRs) to enable automated, broadcast-driven operation of subscriber equipment. The patent explicitly states the limitation of Bourassin/Freeman that they "has no capacity for acting on instructions transmitted by broadcasters to interconnect, actuate or tune systems peripheral to a television receiver". Yet, "addressable" systems already perform broadcast control over subscriber apparatus (e.g., turning decryptors on/off), and Lambert's system shows a computer actuating video players based on control.

  To overcome the manual or non-broadcast-controlled limitations, a POSA would find it obvious to use the embedded signals (from Haselwood/Greenberg, motivated by their potential for greater utility than mere identification) as control instructions. These instructions would be detected by a local receiver and used to control a local processor (such as Lambert's minicomputer or the processing elements within "addressable" systems) that is connected to various subscriber equipment (e.g., peripheral units from Bourassin et al. or VCRs for recording). This combination would predictably enable a broadcaster to remotely and automatically operate subscriber equipment, thereby automating tasks like recording (currently manual for VCRs) or dynamic peripheral interconnection (lacking broadcast control in Bourassin/Freeman).

Claim 76: Personalized Newspaper

• Claim Elements: A broadcast signal containing embedded instructions is transmitted. A receiver at a subscriber's location uses these instructions to control a local processor. This processor then accesses a database of information and assembles a customized "newspaper" (a collection of information) for the user, which is then made available for display or printing.

• Prior Art Elements:

  • Broadcast signal with embedded instructions: Haselwood, Crosby, and Greenberg teach embedding signals in programming.
  • Receiver detects instructions: Implied by monitoring systems and Dataspeed/Equatorial "modios".
  • Local processor controlled by instructions: Dataspeed Corporation and Equatorial Communications Company describe microcomputers that receive "real-time financial data" and where "Each subscriber programs his subscriber station apparatus to select particular data of interest".
  • Accessing a database of information: Dataspeed/Equatorial systems continuously transmit "real-time financial data", which functions as a dynamic information database. Subscribers selecting "data of interest" implies a local filtering or selection from this data or a locally stored profile/database. The patent's example in FIG. 1 involves a local data file on a floppy disk.
  • Assembling a customized "newspaper" / Display or printing: Dataspeed/Equatorial systems provide "electronic print services" such as "tickers" and "broad tapes", which are customized collections of information displayed or printed. The act of "selecting particular data of interest" is a form of customization.

• Motivation for Combination:
  A POSA would be motivated to combine embedded broadcast signals (Haselwood et al./Greenberg) with the local data processing, customization, and display/print capabilities of Dataspeed Corporation/Equatorial Communications Company systems to enable automated creation of personalized information outputs. The patent identifies a key limitation of Dataspeed/Equatorial systems as "it only transmits data; it does not control data processing" in a broadcast-driven manner, and also notes that subscribers manually "program his subscriber station apparatus to select particular data of interest".

  To automate and centralize control over this personalization, a POSA would predictably use embedded signals (from Haselwood/Greenberg, motivated by the desire to leverage these signals for more than just identification) as instructions. These instructions would direct a local microcomputer (Dataspeed/Equatorial, which already receives and processes real-time data and enables selection of "data of interest") to automatically access its data sources (whether the incoming real-time stream or a local database). The processor would then assemble and format a customized collection of information ("newspaper") based on these instructions and the subscriber's previously defined "data of interest" or local data, for display or printing (as exemplified by "tickers" and "broad tapes"). This combination provides a predictable solution for broadcast-controlled, automatic generation of personalized textual information, addressing the gap where Dataspeed/Equatorial lacked broadcast-driven processing control.

Claim 83: Synchronizing Local Device with Broadcast

• Claim Elements: A TV program with embedded timing signals (a "combining synch command") is transmitted. A receiver uses this command to control a local processor, which in turn synchronizes the operation of a local apparatus (like a VCR or computer) with the timing of the television program.

• Prior Art Elements:

  • TV program with embedded signals: Haselwood, Crosby, and Greenberg teach embedding signals in programming. The patent also notes that Greenberg "requires that a digital signal be transmitted at a particular place on a select line of each frame of a television program", which highlights the capacity for precise timing.
  • Receiver uses command to control local processor: Lambert's minicomputer responds to signals to generate a schedule and "actuates preloaded video tape, disc or film players". "Addressable" systems control "specific individual subscriber station apparatus" via broadcast control instructions. Dataspeed/Equatorial microcomputers process data based on subscriber input.
  • Synchronizing operation of a local apparatus (VCR, computer) with timing of TV program: Video tape recorders "have capacity for automatic delayed recording of television transmissions on the basis of instructions input manually by viewers", indicating time-based operation. Bourassin et al. provides "image-within-image" superimposition, which inherently requires some form of visual synchronization. The patent notes that prior art overlay systems lacked the "capacity to cause overlays to commence or cease appearing at receiver stations, let alone commence and cease appearing periodically".

• Motivation for Combination:
  A POSA would be motivated to combine the embedded signal capabilities of broadcasts (Haselwood et al./Greenberg) with the local control and time-based operations of existing apparatus (VCRs, Lambert's system, Bourassin's overlay) to achieve automatic and precise synchronization with broadcast content. While VCRs can perform "automatic delayed recording", this is based on manual input. Lambert's system schedules playback but doesn't describe synchronization with embedded broadcast timing signals for dynamic operations. Bourassin's "image-within-image" lacks broadcast-controlled commencement/cessation.

  Recognizing the precision of embedded digital signals (e.g., Greenberg's placement on a specific line of a video frame) and the desire for more dynamic control, a POSA would predictably use these embedded signals (from Haselwood/Greenberg, motivated by their potential for expanded utility) as timing signals or "combining synch commands." These commands, detected by a local receiver/processor (like Lambert's minicomputer or Dataspeed's microcomputer), would then automatically synchronize the operation of a local apparatus (such as a VCR to start/stop recording, or to control the appearance/disappearance of an overlay as in Bourassin et al.) with the exact timing of the television program. This combination directly addresses the limitation of manual input for time-based operations and the lack of dynamic, broadcast-controlled synchronization for combined media presentations.