公开(公告)号：WO2002071773A1

公开(公告)日：2002-09-12

申请号：PCT/US2002/003030

申请日：2002-01-30

Applicant: COMMAND AUDIO CORPORATION

Inventor： LINDEN, Thomas, M.

IPC: H04Q7/20

CPC classification number: H04H20/30 ,  H04H20/42 ,  H04H60/06 ,  H04H2201/183 ,  H04N21/2402 ,  H04N21/26216 ,  H04N21/2665 ,  H04N21/6112 ,  H04N21/8106 ,  H04N21/8126

Abstract: A network datacast system (200) includes a plurality of transmission facilities (210,212). Each transmission facility (210,212) receives primary programs (206,208) from one or more media studios (202,204). Each transmission facility (210,212) also receives ancillary data programs (226,228) from a network datacast center (220). Each transmission facility (210,212) broadcasts a wireless signal (234,236) that includes a primary channel and at least one ancillary data channel. The transmission facilities (210,212) contemporaneously transmit the ancillary programs (226,228) on the ancillary data channels. A network datacast receiver (250) contemporaneously receives the wireless signals (234,236) and extracts the datacast programs from each datacast signal. The extracted datacast programs are stored in the receiver (250) for subsequent output to the user.

Abstract translation: 网络数据广播系统（200）包括多个传输设备（210,212）。 每个传输设施（210,212）从一个或多个媒体工作室（202,204）接收主节目（206,208）。 每个传输设施（210,212）还从网络数据中心（220）接收辅助数据节目（226,228）。 每个传输设施（210,212）广播包括主要信道和至少一个辅助数据信道的无线信号（234,236）。 传输设施（210,212）同时在辅助数据信道上发送辅助节目（226,228）。 网络数据广播接收机（250）同时接收无线信号（234,236），并从每个数据广播信号中提取数据广播节目。 提取的数据广播节目存储在接收机（250）中，以便随后输出给用户。

公开(公告)号：WO2003001685A2

公开(公告)日：2003-01-03

申请号：PCT/US2002/019264

申请日：2002-06-17

Applicant: COMMAND AUDIO CORPORATION

Inventor： LINDEN, Thomas, M. ,  BOGUE, Donald, F. ,  WEGENER, Albert, W. ,  COSTELLO, Edward, J. ,  SCHOELLERMAN, John, M.

IPC: H04B

CPC classification number: H04H60/06 ,  H04H20/40 ,  H04H20/42 ,  H04H60/27 ,  H04H2201/19 ,  H04H2201/20 ,  H04N21/233 ,  H04N21/2385 ,  H04N21/26241 ,  H04N21/26266 ,  H04N21/8456

Abstract: In an on-demand radio broadcast system (600) in which the receivers (602) have the capability to store received programs, a communications channel (300) is divided into a plurality of time segments (302). Each time segment (302) is partitioned into a high priority program timeslice (304) and a low priority program timeslice (306). High priority programs (336) are broadcast in each high priority program timeslice (304). The remaining programs are broadcast during a plurality of low priority program timeslices (306). This overcomes a problem of the receivers (602) being out of contact and not having current versions of the high priority programs (336).

Abstract translation: 在其中接收机（602）具有存储接收的节目的能力的按需无线电广播系统（600）中，通信信道（300）被分成多个时间段（302 ）。 每个时间段（302）被划分为高优先级节目时间片（304）和低优先级节目时间片（306）。 高优先级节目（336）在每个高优先级节目时间片（304）中广播。 剩余的节目在多个低优先级节目时间片期间被广播（306）。 这克服了接收器（602）不接触并且不具有当前版本的高优先级程序（336）的问题。

公开(公告)号：WO1997037449A1

公开(公告)日：1997-10-09

申请号：PCT/US1997005141

申请日：1997-03-28

Applicant: COMMAND AUDIO CORPORATION

Inventor： COMMAND AUDIO CORPORATION ,  MORRISON, Eric, F.

IPC: H04H05/00

CPC classification number: H04H20/88

Abstract: The data rate of speech and non-speech audio is selectively reduced by respective compression techniques based upon the information content of the type of signal. A composite audio information signal formed of speech and non-speech audio is applied to both a voice encoder and a wide-band audio compression encoder. An audio-type detection circuit examines the speech spectrum as well as the entire frequency spectrum and dynamic range of the audio information and generates a selection signal indicating whether the signal is speech or non-speech audio. A composite encoded audio signal is produced by intermingling the outputs of the encoders in response to the selection signal. The composite encoded audio signal and an identification signal indicative of the audio signal type are transmitted to respective receivers at the reduced data rates for storage, and subsequent decoding and retrieval by a listener as an audible signal in response to the transmitted identification signal.

Abstract translation: 基于信号类型的信息内容，通过各自的压缩技术选择性地减少语音和非语音音频的数据速率。 由语音和非语音音频形成的复合音频信息信号被应用于语音编码器和宽带音频压缩编码器。 音频类型检测电路检查语音频谱以及音频信息的整个频谱和动态范围，并产生指示信号是语音还是非语音音频的选择信号。 通过根据选择信号混合编码器的输出来产生复合编码音频信号。 复合编码音频信号和指示音频信号类型的识别信号以降低的数据速率发送到各个接收机用于存储，并且随后由收听者解码和检索响应于所发送的识别信号的可听信号。

公开(公告)号：WO2003021416A1

公开(公告)日：2003-03-13

申请号：PCT/US2002/027820

申请日：2002-08-30

Applicant: COMMAND AUDIO CORPORATION

Inventor： LINDEN, Thomas ,  SWERDLOW, Serge ,  CHERNIKOV, Andrey

IPC: G06F3/00

CPC classification number: G06F17/30017

Abstract: A computer editing system for editing and creating a multimedia program in a visual workspace (1), which provides a plurality of segments of audio or video data, displays an icon (10) representing each of the segments, associates a first one of the segments (2) with at least one other of the segments, displays an indication of the association of the first to the other of the segments, thereby composing a program of the segments, wherein the program may be played in a sequence determined by a user in accordance with the associations.

Abstract translation: 一种用于在视觉工作空间（1）中编辑和创建多媒体节目的计算机编辑系统，其提供音频或视频数据的多个段，显示表示每个段的图标（10），将第一个段 （2）与至少一个其他段相关联地显示第一段到第二段之间的关联的指示，从而组成段的程序，其中该程序可以以用户确定的顺序进行播放 按照协会。

公开(公告)号：EP0689742B2

公开(公告)日：2007-04-04

申请号：EP94911461.5

申请日：1994-03-04

Applicant: Command Audio Corporation

Inventor： RYAN, John, O.

IPC: H04H1/00

CPC classification number: H04H20/34 ,  G06Q40/00 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00246 ,  G11B20/00413 ,  G11B20/0071 ,  G11B20/10527 ,  G11B27/031 ,  G11B27/102 ,  G11B27/34 ,  H04H60/15 ,  H04N5/602 ,  H04N7/04 ,  H04N7/06 ,  H04N7/081 ,  H04N7/0881 ,  H04N7/0882 ,  H04N7/162

Abstract: A radio receiver receives FM subcarrier transmissions, and stores the transmitted textual information in a random access memory. The information is typically news, weather, sports, entertainment or other information of interest. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of information. A speech synthesizer accepts the accessed textual information items and transforms them into spoken speech. The user interface is either by voice or a single or multi-position switch allowing scanning through and selection from the menu items.

公开(公告)号：EP0754377B1

公开(公告)日：2006-08-02

申请号：EP95916213.2

申请日：1995-04-05

Applicant: Command Audio Corporation

Inventor： RYAN, John, O.

IPC: H04H1/00

CPC classification number: H04H20/28 ,  H04N7/0881

Abstract: A system and method of information dissemination that permits the user to listen to the specific content of information when and where he or she wants to. A radio or television receiver system receives information from an FM subcarrier, a television vertical blanking interval transmission, an active picture area television transmission, a television separate audio program transmission or a dedicated radio channel and stores the transmitted information in a memory. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of the information. Typically the system includes RAM and/or a magnetic storage medium such as a digital audio tape, a magneto-optical mini-disk, a magnetic disk or optical disk, sufficient to store information for several hours of audio output. A decompression device accepts the accessed compressed digital audio information items and transforms them into audible speech signals. The user interface is either a voice control or a single or multi-position switch allowing scanning through and selection from the menu items. The system is also capable of transmitting alphanumeric data and converting this alphanumeric data to an audible form using a voice synthesizer.

公开(公告)号：EP1195998B1

公开(公告)日：2005-05-18

申请号：EP01308055.1

申请日：2001-09-21

Applicant: Command Audio Corporation

Inventor： Wegener, Albert W. ,  Linden, Thomas M. ,  Schoellerman, John ,  Loewenthal, William J. ,  Bogue, Donald F.

IPC: H04Q7/32 ,  H04M3/493

CPC classification number: H04M3/4938 ,  H04M2207/206

Abstract: Audio and/or video content is remotely stored. A portion of the remotely stored content is transferred to and stored in a mobile on-demand audio and/or video content output device. In addition, a link is transferred to and stored in the mobile output device. The link is associated with the content portion stored in the output device and points to another portion of the remotely stored content that is related to the content portion locally stored on the mobile device. In response to a user command entered on the mobile device, the related portion of the remotely stored content is accessed using a two-way wireless communications system and is transferred from the database to the mobile device for output.

公开(公告)号：EP1187379A3

公开(公告)日：2002-09-11

申请号：EP01306224.5

申请日：2001-07-19

Applicant: Command Audio Corporation

Inventor： Costello, Edward J. ,  Wegener, Albert W. ,  Linden, Thomas M. ,  Swerdlow, Serge

IPC: H04H1/00

CPC classification number: H04H60/07 ,  H04H60/13

Abstract: In a local storage and playback broadcast system, multiple copies of one or more processing parameters used in individual receivers for the local storage and playback are broadcast. In some embodiments each processing parameter is associated with each packet in the program so that a copy of each parameter is broadcast with each packet. In some embodiments the program is divided into segments, each segment having a header, and a copy of the parameter is broadcast in each segment header.

公开(公告)号：EP1187378A3

公开(公告)日：2002-09-11

申请号：EP01306214.6

申请日：2001-07-19

Applicant: Command Audio Corporation

Inventor： Wegener, Albert W. ,  Martinez, Orlando ,  Costello, Edward ,  Voichick, Jonathan ,  Wen, Eric X. ,  lINDEN, thonas M.

IPC: H04H1/00

CPC classification number: H04H20/40 ,  H04H60/31

Abstract: Broadcast programs, e.g., for an audio information program, are divided into one or more segments and are broadcast to a receiver in packet format. The receiver captures the transmitted packets and reassembles the segments and the program for storage and subsequent output to the user. Segment quality of service is evaluated prior to output by ensuring that a minimum percent of packets per segment are usable, and by ensuring that no more than a maximum number of consecutive packets in the segment are unusable. Program quality of service is evaluated by ensuring that a minimum percent of segments per program are usable, and by determining if the first and/or last segment is usable. Different quality of service parameters are specified for particular programs. New quality of service parameters for particular programs are transmitted to the receiver.

公开(公告)号：EP0688480B1

公开(公告)日：2001-12-19

申请号：EP95909248.7

申请日：1995-01-12

Applicant: Command Audio Corporation

Inventor： RYAN, John, O.

IPC: H04H1/00

CPC classification number: H04H60/27 ,  G06Q40/00 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00413 ,  G11B20/0071 ,  G11B20/10527 ,  G11B27/031 ,  G11B27/102 ,  G11B27/34 ,  H04H20/28 ,  H04H20/34 ,  H04H20/95 ,  H04H60/15 ,  H04H60/17 ,  H04H60/23 ,  H04H60/25 ,  H04N5/602 ,  H04N7/04 ,  H04N7/06 ,  H04N7/081 ,  H04N7/088 ,  H04N7/0881 ,  H04N7/0882 ,  H04N7/162

Abstract: A system and method of information dissemination that permits the user to listen to the specific content of information when and where he or she wants to. A radio or television receiver system receives information from an FM subcarrier, a television vertical blanking interval transmission, a television separate audio program transmission or a dedicated channel and stores the transmitted information in a memory. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of information. Typically, the system includes RAM and/or a storage medium such as a digital audio tape, a magneto-optical mini-disk, a magnetic disk or optical disk, sufficient to store information for 10 hours of audio. A decompression device accepts the accessed compressed digital audio information items which may have been encrypted and transforms them into spoken speech. The user interface is either by voice or a single or multi-position switch allowing scanning through and selection from the menu items. The signal for such a device is generated by converting analog audio signals into a digital audio data stream which may be encrypted. The encrypted digital data stream is compressed and inserted on the radio or television carrier via an FM subcarrier, the television vertical interval or the separate audio program channel of a television transmitter. The system is also capable of transmitting alphanumeric data and converting this alphanumeric data to a voice form using a speech synthesizer.