Search results for "MPEG-2"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
10	Yuh-Feng Hsu, Yung-Chang Chen, Chaur-Jia Huang, Ming-Jyh Sun	MPEG-2 spatial scalable coding and transport stream error concealment for satellite TV broadcasting using Ka-band.	IEEE Trans. Broadcast.	1998	DBLP DOI BibTeX RDF
10	Yuh-Feng Hsu, Yung-Chang Chen, Chaur-Jia Huang, Ming-Jyh Sun	MPEG-2 spatial scalable coding and transport stream error concealment for satellite TV broadcasting using Ka-band.	IEEE Trans. Broadcast.	1998	DBLP DOI BibTeX RDF
10	Yingwei Chen, Kiran S. Challapali, Mahesh Balakrishnan 0002	Extracting Coding Parameters from Pre-Coded MPEG-2 Video.	ICIP (2)	1998	DBLP DOI BibTeX RDF
10	Jungwoo Lee 0001	Rate-Distortion Optimization of Parametrized Quantization Matrix for MPEG-2 Encoding.	ICIP (2)	1998	DBLP DOI BibTeX RDF
10	Yingwei Chen, Kiran S. Challapali	Fast Computation of Perceptually Optimal Quantization Matrices for MPEG-2 Intra Pictures.	ICIP (3)	1998	DBLP BibTeX RDF
10	Olivier Cantineau, Jean-Didier Legat	Efficient Parallelisation of an MPEG-2 Codec on a TMS320C80 Video Processor.	ICIP (3)	1998	DBLP BibTeX RDF
10	Ryoma Oami, Mutsumi Ohta	Efficient lossless video coding compatible with MPEG-2.	ICC	1998	DBLP DOI BibTeX RDF
10	Pedro Cuenca 0001, Teresa Olivares, Antonio Garrido 0001, Francisco J. Quiles 0001, Luis Orozco-Barbosa	Techniques to increase MPEG-2 error resilience in the VBR video transmission over ATM networks.	ICC	1998	DBLP DOI BibTeX RDF
10	Lijun Luo, Cairong Zou, Zhenya He, Isao Shirakawa	An adaptive quantization algorithm for MPEG-2 video coding.	ICASSP	1998	DBLP DOI BibTeX RDF
10	Kouhei Nadehara, Hanno Lieske, Ichiro Kuroda	Software MPEG-2 video decoder on a 200-MHz, low-power multimedia microprocessor.	ICASSP	1998	DBLP DOI BibTeX RDF
10	Ekaterina G. Barzykina, Panos Nasiopoulos, Rabab K. Ward	MPEG-2 video coding with image partitioning.	ICASSP	1998	DBLP DOI BibTeX RDF
10	Chee Sun Won, Dong Kwon Park, Seong-Joon Yoo	Extracting Image Features from MPEG-2 Compressed Stream.	Storage and Retrieval for Image and Video Databases (SPIE)	1998	DBLP DOI BibTeX RDF
10	Junehwa Song, Boon-Lock Yeo	Spatially Reduced Image Extraction from MPEG-2 Video: Fast Algorithms and Applications.	Storage and Retrieval for Image and Video Databases (SPIE)	1998	DBLP DOI BibTeX RDF
10	J. G. An, J. S. Shim, Y. M. Kim, Mike Myung-Ok Lee	50 MHz high-speed and 5 W low-power real-time programmable video multi processor (VMP) for MPEG-2 MP@ML on 0.6 μm TLM CMOS technology.	ICECS	1998	DBLP DOI BibTeX RDF
10	P. Garino, A. Finotello, M. Gandini, M. Marchisio, Martin Gumm, Friederich Mombers, Stephanie Dogimont, I. Remi	A flexible MIMD pixel processor for high quality MPEG-2 motion and vector processing.	ICECS	1998	DBLP DOI BibTeX RDF
10	Arnaud Laffitte, Rizos Sakellariou, John R. Gurd	Evaluation of Two Compiler-Based Approaches for the Parallelisation of an MPEG-2 Decoder.	HPCN	1998	DBLP DOI BibTeX RDF
10	Jörg Henkel, Yanbing Li	Energy-conscious HW/SW-partitioning of embedded systems: a case study on an MPEG-2 encoder.	CODES	1998	DBLP DOI BibTeX RDF	C
10	Seong-Hwan Cho, Thucydides Xanthopoulos, Anantha P. Chandrakasan	An ultra low power variable length decoder for MPEG-2 exploiting codeword distribution.	CICC	1998	DBLP DOI BibTeX RDF
10	Pedro Cuenca 0001, Antonio Jose Garrido del Solo, Francisco J. Quiles 0001, Luis Orozco-Barbosa	Some Proposals to Improve Error Resilience in the MPEG-2 Video Transmission over ATM Networks.	INFOCOM	1998	DBLP DOI BibTeX RDF
10	Lorenzo Favalli, Alessandro Mecocci, Fulvio Moschetti	Object Tracking for Retrieval Applications in Mpeg-2.	NMBIA	1998	DBLP DOI BibTeX RDF
10	Francesca Dardi, Josè Mir, Giorgio Parladori, Giovanni L. Sicuranza	Preprocessing for the MPEG-2 video coding.	NMBIA	1998	DBLP DOI BibTeX RDF
10	Aravind Bala, Darshat Shah, Wu-chi Feng, Dhabaleswar K. Panda 0001	Experiences with Software MPEG-2 Video Decompression on an SMP PC.	ICPP Workshops	1998	DBLP DOI BibTeX RDF
10	Nien-Tsu Wang, Chen-Wei Jeff Shih, Duan Juat Wong-Ho, Nam Ling	MPEG-2 Video Decoder for DVD.	Great Lakes Symposium on VLSI	1998	DBLP DOI BibTeX RDF
10	Marie Colin, Mohamed Gharbi, Marc Gazalet, Cory Modlin	Hierarchical MPEG 2 video transmission on ADSL for a higher quality of service (QoS).	EUSIPCO	1998	DBLP BibTeX RDF
10	Tokumichi Murakami, Kohtaro Asai, Hideo Ohira	Compression and packetization for MPEG-2/4 video and audio.	EUSIPCO	1998	DBLP BibTeX RDF
10	Masayuki Mizuno, Yasushi Ooi, Naoya Hayashi, Junichi Goto, Masatoshi Hozumi, Koichiro Furuta, Atsufumi Shibayama, Yoetsu Nakazawa, Osamu Ohnishi, Shu-Yu Zhu, Yutaka Yokoyama, Yoichi Katayama, Hideto Takano, Noriyuki Miki, Yuzo Senda, Ichiro Tamitani, Masakazu Yamashina	A 1.5-W single-chip MPEG-2 MP@ML video encoder with low power motion estimation and clocking.	IEEE J. Solid State Circuits	1997	DBLP DOI BibTeX RDF
10	Albert van der Werf, Fons Brüls, Richard P. Kleihorst, Erwin Waterlander, Math J. W. Verstraelen, Thomas Friedrich 0006	I.McIC: a single-chip MPEG-2 video encoder for storage.	IEEE J. Solid State Circuits	1997	DBLP DOI BibTeX RDF
10	Marco Mattavelli	Motion analysis and estimation: From ill-posed discrete inverse linear problems to MPEG-2 coding.	Signal Process.	1997	DBLP DOI BibTeX RDF
10	Faouzi Kossentini, Yuen-Wen Lee	Computation-constrained fast MPEG-2 encoding.	IEEE Signal Process. Lett.	1997	DBLP DOI BibTeX RDF
10	Lijun Luo, Cairong Zou, Zhen-Ya He	A new algorithm on MPEG-2 target bit-number allocation at scene changes.	IEEE Trans. Circuits Syst. Video Technol.	1997	DBLP DOI BibTeX RDF
10	Eldon Mellaney, Luis Orozco-Barbosa, Gilles Gagnon	Study of MPEG-2 video traffic in a multimedia LAN/ATM internetwork system.	IEEE Trans. Circuits Syst. Video Technol.	1997	DBLP DOI BibTeX RDF
10	Jong Wook Park, JongWon Kim 0001, Sang Uk Lee	DCT coefficients recovery-based error concealment technique and its application to the MPEG-2 bit stream error.	IEEE Trans. Circuits Syst. Video Technol.	1997	DBLP DOI BibTeX RDF
10	Shahriar M. Akramullah, Ishfaq Ahmad, Ming L. Liou	Performance of software-based MPEG-2 video encoder on parallel and distributed systems.	IEEE Trans. Circuits Syst. Video Technol.	1997	DBLP DOI BibTeX RDF
10	Jian Zhang 0002, Michael R. Frater, John F. Arnold, Terence M. Percival	MPEG 2 Video Services for Wireless ATM Networks.	IEEE J. Sel. Areas Commun.	1997	DBLP DOI BibTeX RDF
10	Mark R. Pickering, John F. Arnold, Michael C. Cavenor	A VBR rate control algorithm for MPEG-2 video coders with perceptually adaptive quantisation and traffic shaping.	Signal Process. Image Commun.	1997	DBLP DOI BibTeX RDF
10	Jana Dittmann, Arnd Steinmetz	Sicherheitsproblematik in verteilten, digitalen Videoanwendungen und Präsentation eines technischen Lösungsansatzes zur transparenten Verschlüsselung von MPEG-2 Video.	Verläßliche IT-Systeme	1997	DBLP DOI BibTeX RDF
10	Hyung-Sun Kim, Kenny Boo, SeokWoo Chung, GeonYoung Choi, Yong Jin Lee, JaeHo Jeon, Hyun Wook Park	Implementation of MPEG-2 encoder to multiprocessor system using multiple MVPs (TMS320C80).	Medical Imaging: Image Processing	1997	DBLP DOI BibTeX RDF
10	David Wilson, Mohammed Ghanbari 0001	Optimal DCT Coefficient Adjustment Applied to MPEG-2 SNR Scalability.	ICC (3)	1997	DBLP DOI BibTeX RDF
10	Susanna Aign	Error Concealment, Early Re-Synchronization, and Iterative Decoding for MPEG-2.	ICC (3)	1997	DBLP DOI BibTeX RDF
10	Vijay K. Jain, S. S. Skrzypkowiak	Formative Motion Estimation Using Affinity-Cell Neural Network for Application to MPEG-2.	ICC (3)	1997	DBLP DOI BibTeX RDF
10	Yasushi Ooi, Osamu Ohnishi, Yutaka Yokoyama, Yoichi Katayama, Masayuki Mizuno, Masakazu Yamashina, Hideo Takano, Naoya Hayashi, Ichiro Tamitani	An MPEG-2 encoder architecture based on a single-chip dedicated LSI with a control MPU.	ICASSP	1997	DBLP DOI BibTeX RDF
10	Pedro A. Amado Assunção, Mohammed Ghanbari 0001	Transcoding of MPEG-2 video in the frequency domain.	ICASSP	1997	DBLP DOI BibTeX RDF
10	David Wilson, Mohammed Ghanbari 0001	Optimisation of two-layer SNR scalability for MPEG-2 video.	ICASSP	1997	DBLP DOI BibTeX RDF
10	Susanna Aign	Error concealment improvements for MPEG-2 using enhanced error detection and early re-synchronization.	ICASSP	1997	DBLP DOI BibTeX RDF
10	Frank Hartung, Bernd Girod	Digital watermarking of MPEG-2 coded video in the bitstream domain.	ICASSP	1997	DBLP DOI BibTeX RDF
10	Sadik Bayrakeri, Russell M. Mersereau	MPEG-2 nonlinear temporally scalable coding and hybrid quantization.	ICASSP	1997	DBLP DOI BibTeX RDF
10	Yuichiro Takamizawa, Masahiro Iwadare, Akihiko Sugiyama	An efficient tonal component coding algorithm for MPEG-2 Audio NBC.	ICASSP	1997	DBLP DOI BibTeX RDF
10	Mathias Rautenberg, Helmut Rzehak	QoS-Bewertung von VoD-Systemen mit skalierbarem MPEG-2 Datenbestand.	MMB	1997	DBLP BibTeX RDF
10	Raffaele Noro, Jean-Pierre Hubaux	Improving Clock Synchronization for MPEG-2 Services over ATMM Networks.	IDMS	1997	DBLP DOI BibTeX RDF
10	Wa James Tam, Lew B. Stelmach	Perceived image quality of MPEG-2 stereoscopic sequences.	Human Vision and Electronic Imaging	1997	DBLP DOI BibTeX RDF
10	Peter Soderquist, Miriam Leeser	Optimizing the Data Cache Performance of a Software MPEG-2 Video Decoder.	ACM Multimedia	1997	DBLP DOI BibTeX RDF
10	Wenwu Zhu 0001, Yiwei Thomas Hou, Yao Wang 0001, Ya-Qin Zhang	Modeling and simulation of MPEG-2 video transport over ATM networks considering the jitter effect.	MMSP	1997	DBLP DOI BibTeX RDF
10	Angelos Bilas, Jason Fritts, Jaswinder Pal Singh	Real-Time Parallel MPEG-2 Decoding in Software.	IPPS	1997	DBLP DOI BibTeX RDF
10	Jenwei Hsieh, David Hung-Chang Du, Horng-Juing Lee, Tai-Sheng Chang	PCR-Assist CBR for Delivering Pre-Recorded MPEG-2 Transport Streams.	ICMCS	1997	DBLP DOI BibTeX RDF
10	Ahmed Mehaoua, Raouf Boutaba, Guy Pujolle	Proposal of an Extended AAL5 for VBR MPEG-2 over ATM.	ICMCS	1997	DBLP DOI BibTeX RDF
10	Peter Soderquist, Miriam Leeser	Memory Traffic and Data Cache Behavior of an MPEG-2 Software Decoder.	ICCD	1997	DBLP DOI BibTeX RDF
10	Minhua Zhou	Optimization of MPEG-2 video encoding.		1997	RDF
10	José M. Fernández, Félix Moreno, Juan M. Meneses	A High-Performance Architecture with a Macroblock-Level-Pipeline for MPEG-2 Coding.	Real Time Imaging	1996	DBLP DOI BibTeX RDF
10	Wim M. J. Coene, Gertjan Keesman	On performance gains in MPEG-2 video coding via a rate-distortion optimal route.	Signal Process.	1996	DBLP DOI BibTeX RDF
10	Toshio Kondo, Kazuhito Suguri, Mitsuo Ikeda, Tetsuya Abe, Hiroaki Matsuda, Tsuneo Okubo, Kenji Ogura, Yutaka Tashiro, Naoki Ono, Toshihiro Minami, Ritsu Kusaba, Takeshi Ikenaga, Nobutaro Shibata, Ryota Kasai, Koji Otsu, Fumiaki Nakagawa, Yasuhiko Sato	Two-chip MPEG-2 video encoder.	IEEE Micro	1996	DBLP DOI BibTeX RDF
10	Mengjou Lin, David Singer, Alagu Periyannan	Supporting Constant-Bit-Rate-Encoded MPEG-2 Transport Over Local ATM Networks.	Multim. Syst.	1996	DBLP DOI BibTeX RDF
10	R. Aravind 0001, M. Reha Civanlar, Amy R. Reibman	Packet loss resilience of MPEG-2 scalable video coding algorithms.	IEEE Trans. Circuits Syst. Video Technol.	1996	DBLP DOI BibTeX RDF
10	Belle L. Tseng, Dimitris Anastossiou	Multiviewpoint video coding with MPEG-2 compatibility.	IEEE Trans. Circuits Syst. Video Technol.	1996	DBLP DOI BibTeX RDF
10	Ender Ayanoglu, Pramod Pancha, Amy R. Reibman, Shilpa Talwar	Forward Error Control for MPEG-2 Video Transport in a Wireless ATM LAN.	Mob. Networks Appl.	1996	DBLP DOI BibTeX RDF
10	Daniel Lauzon, André Vincent, Limin Wang	Performance evaluation of MPEG-2 video coding for HDTV.	IEEE Trans. Broadcast.	1996	DBLP DOI BibTeX RDF
10	M. Reha Civanlar, Glenn L. Cash	A practical system for MPEG-2-based video-on-demand over ATM packet networks and the WWW.	Signal Process. Image Commun.	1996	DBLP DOI BibTeX RDF
10	Mohammed Ghanbari 0001, Pedro A. Amado Assunção	Control of MPEG-2 video traffic in an ATM environment.	ICIP (2)	1996	DBLP DOI BibTeX RDF
10	Ender Ayanoglu, Pramod Pancha, Amy R. Reibman, Shilpa Talwar	Forward error control for MPEG-2 video transport in a wireless ATM LAN.	ICIP (2)	1996	DBLP DOI BibTeX RDF
10	Rolf Matzner, Peter Eck, Changsong Xie	On MPEG-2 decoding of noisy input data.	ICIP (3)	1996	DBLP DOI BibTeX RDF
10	Olivier Verscheure, Andrea Basso 0001, Mounir El-Maliki, Jean-Pierre Hubaux	Perceptual bit allocation for MPEG-2 CBR video coding.	ICIP (2)	1996	DBLP DOI BibTeX RDF
10	Subir Varma	MPEG-2 over ATM: System Design Issues.	COMPCON	1996	DBLP DOI BibTeX RDF
10	Prasoon Tiwari, Eric Viscito	A parallel MPEG-2 video encoder with look-ahead rate control.	ICASSP	1996	DBLP DOI BibTeX RDF
10	Olivier Verscheure, Jean-Pierre Hubaux	Perceptual Video Quality and Activity Metrics: Optimization of Video Services Based on MPEG-2 Encoding.	COST 237 Workshop	1996	DBLP DOI BibTeX RDF
10	Giancarlo Cicalini, Lorenzo Favalli, Alessandro Mecocci	Improving bit-rate and quality control for MPEG-2 video sources.	EUSIPCO	1996	DBLP BibTeX RDF
10	Mikael Karlsson Rudberg, Lars Wanhammar	Implementation of a fast MPEG-2 compliant Huffman decoder.	EUSIPCO	1996	DBLP BibTeX RDF
10	Laurent Piron	A temporal mode selection in the MPEG-2 encoder scheme.	EUSIPCO	1996	DBLP BibTeX RDF
10	Javier Zamora, Dimitris Anastassiou, Kand Ly	Cell delay variation performance of CBR and VBR MPEG-2 sources in an atm multiplexer.	EUSIPCO	1996	DBLP BibTeX RDF
10	Shahriar M. Akramullah, Ishfaq Ahmad, Ming L. Liou	A Data-Parallel Approach for Real-Time MPEG-2 Video Encoding.	J. Parallel Distributed Comput.	1995	DBLP DOI BibTeX RDF
10	Sudhir S. Dixit, Paul Skelly	MPEG-2 over ATM for video dial tone networks: issues and strategies.	IEEE Netw.	1995	DBLP DOI BibTeX RDF
10	A. Tanju Erdem, M. Ibrahim Sezan	Compression of 10-bit video using the tools of MPEG-2.	Signal Process. Image Commun.	1995	DBLP DOI BibTeX RDF
10	Sakae Okubo, Ken McCann, Andrew Lippmann	MPEG-2 requirements, profiles and performance verification - Framework for developing a generic video coding standard.	Signal Process. Image Commun.	1995	DBLP DOI BibTeX RDF
10	Eishi Morimatsu, Kiyoshi Sakai, Koichi Yamashita, Mitsuhito Ohta, Hideki Miyasaka, Kiyoshi Maeda, Hisakazu Ogura, Naoyuki Takeshita	Development of a VLSI chip for real time MPEG-2 video decoder.	ICIP (3)	1995	DBLP DOI BibTeX RDF
10	D. Charlot, J.-M. Bard, Barth Canfield, C. Cuney, Andreas Graf, Alain Pirson, Detlef Teichner, Fathy F. Yassa	A RISC controlled motion estimation processor for MPEG-2 and HDTV encoding.	ICASSP	1995	DBLP DOI BibTeX RDF
10	Yuzo Senda, Hidenobu Harasaki, Mitsuharu Yano	A simplified motion estimation using an approximation for the MPEG-2 real-time encoder.	ICASSP	1995	DBLP DOI BibTeX RDF
10	Kiran S. Challapali, Alan P. Cavallerano, Richard Shen, Olu Akiwumi-Assani, Aldo Cugnini, Carlo Basile	Grand alliance MPEG-2-based video decoder with parallel processing architecture.	Int. J. Imaging Syst. Technol.	1994	DBLP DOI BibTeX RDF
10	Alexandros Eleftheriadis, Dimitris Anastassiou	Optimal Data Partitioning of MPEG-2 Coded Video.	ICIP (1)	1994	DBLP DOI BibTeX RDF
10	Lian Li, Nicolas D. Georganas	MPEG-2 Coded- and Uncoded-Stream Synchronization Control for Real-Time Multimedia Transmission and Presentation over B-ISDN.	ACM Multimedia	1994	DBLP DOI BibTeX RDF
10	Tsuneyoshi Hidaka, Keiji Ozawa	ISO/IEC JTC1 SC29/WG11; Report on MPEG-2 subjective assessment at Kurihama.	Signal Process. Image Commun.	1993	DBLP DOI BibTeX RDF
10	Atul Puri	Video coding using the MPEG-2 compression standard.	VCIP	1993	DBLP DOI BibTeX RDF
10	Chia-Cheng Lo, Chia-Wei Hsu, Ming-Der Shieh	Area-Efficient H.264 VLC Decoder Using Sub-tree Classification.	IIH-MSP	2010	DBLP DOI BibTeX RDF	entropy decoder, H.264/AVC, MPEG-2, CAVLC
10	Lalit Kumar, Rajesh Kushwaha, Rishi Prakash	Design & Development of Small Linux Operating System for Browser Based Digital Set Top Box.	CICSyN	2009	DBLP DOI BibTeX RDF	Customized Linux, Transport Stream, DVB-s, TT Budget Card, DTH: Direct to Home, VOD: Video on Demand, IR: Infra Red, LIRC, MPEG-2, OS
10	Yutaka Tashiro, Yoshiyuki Yashima, Hiroshi Fuju	NTT's technologies for next-generation video services.	Comput. Entertain.	2006	DBLP DOI BibTeX RDF	MPEG-4/AVC, secure video, video distribution, network, watermark, image compression, H.264, MPEG-2, IP network, video encoder, video CODEC, business application, video service, video decoder
10	Chuxiang Li, Jianhua Lu, Jun Gu, Ming L. Liou	Robust Digital Terrestrial TV Broadcasting System with Error-Resilient Schemes.	J. VLSI Signal Process.	2003	DBLP DOI BibTeX RDF	DTTB, MPEG-2, error concealment
10	Dar-Shyang Lee, Berna Erol, Jamey Graham, Jonathan J. Hull, Norihiko Murata	Portable meeting recorder.	ACM Multimedia	2002	DBLP DOI BibTeX RDF	MPEG-2 compressed domain analysis, omni-directional video, appliance, audio processing, meeting recorder
10	Eric F. Weglarz, Kewal K. Saluja, Mikko H. Lipasti	Minimizing Energy Consumption for High-Performance Processing.	ASP-DAC/VLSI Design	2002	DBLP DOI BibTeX RDF	BTB size, voltage reduction, frequency reduction, parallel processing, low power, energy savings, MPEG-2, cache size
10	Hartej Singh, Ming-Hau Lee, Guangming Lu, Fadi J. Kurdahi, Nader Bagherzadeh, Eliseu M. Chaves Filho	MorphoSys: An Integrated Reconfigurable System for Data-Parallel and Computation-Intensive Applications.	IEEE Trans. Computers	2000	DBLP DOI BibTeX RDF	reconfigurable cell array, bit-correlation, dynamic reconfiguration, Single Instruction Multiple Data, multimedia applications, video compression, MPEG-2, Reconfigurable systems, data encryption, target recognition
10	Hartej Singh, Guangming Lu, Eliseu M. Chaves Filho, Rafael Maestre, Ming-Hau Lee, Fadi J. Kurdahi, Nader Bagherzadeh	MorphoSys: case study of a reconfigurable computing system targeting multimedia applications.	DAC	2000	DBLP DOI BibTeX RDF	scheduling, SIMD, MPEG-2, automatic target recognition, dynamic configuration, reconfigurable processors
10	Osama K. Alshaykh, Homer H. Chen	Minimum-drift digital video down-conversion.	ACM Multimedia (1)	1999	DBLP DOI BibTeX RDF	SDTV, MPEG-2, HDTV, format conversion
10	Rina Hayasaka, Hiroshi Matoba, Kazutoshi Maeno	New digital broadcasting services for use with TV sets containing digital storage devices.	ACM Multimedia (2)	1999	DBLP DOI BibTeX RDF	digital broadcasting, layer encolding, scalability, MPEG-2
10	John F. Buford, Chetan B. Gopal	Delivery of MHEG-5 in a DAVIC ADSL Network.	ACM Multimedia	1997	DBLP DOI BibTeX RDF	DAVIC, MHEG, MPEG-2 DSM-CC, video-dial-tone, interactive television